Wikipedia:Sandbox

Period		Holder	Head of government
1955	September – December	District of Columbia	Un­known
1956	January – March	Maine	Un­known
	April – June	Nebraska	Un­known
	July – September	Oklahoma	Un­known
	October – December	Arkansas	Un­known
1957	January – March	Pennsylvania	Un­known
	April – June	Vermont	Un­known
	July – September	Arizona	Un­known
	October – December	New York	Un­known
1958	January – March	Michigan	Un­known
	April – June	Connecticut	Un­known
	July – September	New Hampshire	Un­known
	October – December	Kentucky	Un­known
1959	January – March	North Dakota	Un­known
	April – June	Maryland	Un­known
	July – September	Ohio	Un­known
	October – December	Missouri	Un­known
1960	January – March	South Carolina	Un­known
	April – June	Massachusetts	Un­known
	July – September	Idaho	Un­known
	October – December	Hawaii	Un­known
1961	January – March	Mississippi	Un­known
	April – June	Minnesota	Un­known
	July – September	New Mexico	Un­known
	October – December	North Carolina	Un­known
1962	January – March	Utah	Un­known
	April – June	California	Un­known
	July – September	Delaware	Un­known
	October – December	Kansas	Un­known
1963	January – March	Wisconsin	Un­known
	April – June	New Jersey	Un­known
	July – September	Alabama	Un­known
	October – December	Illinois	Un­known
1964	January – March	Alaska	Un­known
	April – June	Texas	Un­known
	July – September	West Virginia	Un­known
	October – December	Colorado	Un­known
1965	January – March	Indiana	Un­known
	April – June	Montana	Un­known
	July – September	Oregon	Un­known
	October – December	South Dakota	Un­known
1966	January – March	Tennessee	Un­known
	April – June	Virginia	Un­known
	July – September	Georgia	Un­known
	October – December	Florida	Un­known
1967	January – March	Nevada	Un­known
	April – June	Wyoming	Un­known
	July – September	Louisiana	Un­known
	October – December	Washington	Un­known
1968	January – March	Rhode Island	Un­known
	April – June	Iowa	Un­known
	July – September	District of Columbia	Un­known
	October – December	Maine	Un­known
1969	January – March	Nebraska	Un­known
	April – June	Oklahoma	Un­known
	July – September	Arkansas	Un­known
	October – December	Pennsylvania	Un­known
1970	January – March	Vermont	Un­known
	April – June	Arizona	Un­known
	July – September	New York	Un­known
	October – December	Michigan	Un­known
1971	January – March	Connecticut	Un­known
	April – June	New Hampshire	Un­known
	July – September	Kentucky	Un­known
	October – December	North Dakota	Un­known
1972	January – March	Maryland	Un­known
	April – June	Ohio	Un­known
	July – September	Missouri	Un­known
	October – December	South Carolina	Un­known
1973	January – March	Massachusetts	Un­known
	April – June	Idaho	Un­known
	July – September	Hawaii	Un­known
	October – December	Mississippi	Un­known
1974	January – March	Minnesota	Un­known
	April – June	New Mexico	Un­known
	July – September	North Carolina	Un­known
	October – December	Utah	Un­known
1975	January – March	California	Un­known
	April – June	Delaware	Un­known
	July – September	Kansas	Un­known
	October – December	Wisconsin	Un­known
1976	January – March	New Jersey	Un­known
	April – June	Alabama	Un­known
	July – September	Illinois	Un­known
	October – December	Alaska	Un­known
1977	January – March	Texas	Un­known
	April – June	West Virginia	Un­known
	July – September	Colorado	Un­known
	October – December	Indiana	Un­known
1978	January – March	Montana	Un­known
	April – June	Oregon	Un­known
	July – September	South Dakota	Un­known
	October – December	Tennessee	Un­known
1979	January – March	Virginia	Un­known
	April – June	Georgia	Un­known
	July – September	Florida	Un­known
	October – December	Nevada	Un­known
1980	January – March	Wyoming	Un­known
	April – June	Louisiana	Un­known
	July – September	Washington	Un­known
	October – December	Rhode Island	Un­known
1981	January – March	Iowa	Un­known
	April – June	District of Columbia	Un­known
	July – September	Maine	Un­known
	October – December	Nebraska	Un­known
1982	January – March	Oklahoma	Un­known
	April – June	Arkansas	Un­known
	July – September	Pennsylvania	Un­known
	October – December	Vermont	Un­known
1983	January – March	Arizona	Un­known
	April – June	New York	Un­known
	July – September	Michigan	Un­known
	October – December	Connecticut	Un­known
1984	January – March	New Hampshire	Un­known
	April – June	Kentucky	Un­known
	July – September	North Dakota	Un­known
	October – December	Maryland	Un­known
1985	January – March	Ohio	Un­known
	April – June	Missouri	Un­known
	July – September	South Carolina	Un­known
	October – December	Massachusetts	Un­known
1986	January – March	Idaho	Un­known
	April – June	Hawaii	Un­known
	July – September	Mississippi	Un­known
	October – December	Minnesota	Un­known
1987	January – March	New Mexico	Un­known
	April – June	North Carolina	Un­known
	July – September	Utah	Un­known
	October – December	California	Un­known
1988	January – March	Delaware	Un­known
	April – June	Kansas	Un­known
	July – September	Wisconsin	Un­known
	October – December	New Jersey	Un­known
1989	January – March	Alabama	Un­known
	April – June	Illinois	Un­known
	July – September	Alaska	Un­known
	October – December	Texas	Un­known
1990	January – March	West Virginia	Un­known
	April – June	Colorado	Un­known
	July – September	Indiana	Un­known
	October – December	Montana	Un­known
1991	January – March	Oregon	Un­known
	April – June	South Dakota	Un­known
	July – September	Tennessee	Un­known
	October – December	Virginia	Un­known
1992	January – March	Georgia	Un­known
	April – June	Florida	Un­known
	July – September	Nevada	Un­known
	October – December	Wyoming	Un­known
1993	January – March	Louisiana	Un­known
	April – June	Washington	Un­known
	July – September	Rhode Island	Un­known
	October – December	Iowa	Un­known
1994	January – March	District of Columbia	Un­known
	April – June	Maine	Un­known
	July – September	Nebraska	Un­known
	October – December	Oklahoma	Un­known
1995	January – March	Arkansas	Un­known
	April – June	Pennsylvania	Un­known
	July – September	Vermont	Un­known
	October – December	Arizona	Un­known
1996	January – March	New York	Un­known
	April – June	Michigan	Un­known
	July – September	Connecticut	Un­known
	October – December	New Hampshire	Un­known
1997	January – March	Kentucky	Un­known
	April – June	North Dakota	Un­known
	July – September	Maryland	Un­known
	October – December	Ohio	Un­known
1998	January – March	Missouri	Un­known
	April – June	South Carolina	Un­known
	July – September	Massachusetts	Un­known
	October – December	Idaho	Un­known
1999	January – March	Hawaii	Un­known
	April – June	Mississippi	Un­known
	July – September	Minnesota	Un­known
	October – December	New Mexico	Un­known
2000	January – March	North Carolina	Un­known
	April – June	Utah	Un­known
	July – September	California	Un­known
	October – December	Delaware	Un­known
2001	January – March	Kansas	Un­known
	April – June	Wisconsin	Un­known
	July – September	New Jersey	Un­known
	October – December	Alabama	Un­known
2002	January – March	Illinois	Un­known
	April – June	Alaska	Un­known
	July – September	Texas	Un­known
	October – December	West Virginia	Un­known
2003	January – March	Colorado	Un­known
	April – June	Indiana	Un­known
	July – September	Montana	Un­known
	October – December	Oregon	Un­known
2004	January – March	South Dakota	Un­known
	April – June	Tennessee	Un­known
	July – September	Virginia	Un­known
	October – December	Georgia	Un­known
2005	January – March	Florida	Un­known
	April – June	Nevada	Un­known
	July – September	Wyoming	Un­known
	October – December	Louisiana	Un­known
2006	January – March	Washington	Un­known
	April – June	Rhode Island	Un­known
	July – September	Iowa	Un­known
	October – December	District of Columbia	Un­known
2007	January – March	Maine	Un­known
	April – June	Nebraska	Un­known
	July – September	Oklahoma	Un­known
	October – December	Arkansas	Un­known
2008	January – March	Pennsylvania	Un­known
	April – June	Vermont	Un­known
	July – September	Arizona	Un­known
	October – December	New York	Un­known
2009	January – March	Michigan	Un­known
	April – June	Connecticut	Un­known
	July – September	New Hampshire	Un­known
	October – December	Kentucky	Un­known
2010	January – March	North Dakota	Un­known
	April – June	Maryland	Un­known
	July – September	Ohio	Un­known
	October – December	Missouri	Un­known
2011	January – March	South Carolina	Un­known
	April – June	Massachusetts	Un­known
	July – September	Idaho	Un­known
	October – December	Hawaii	Un­known
2012	January – March	Mississippi	Un­known
	April – June	Minnesota	Un­known
	July – September	New Mexico	Un­known
	October – December	North Carolina	Un­known
2013	January – March	Utah	Un­known
	April – June	California	Un­known
	July – September	Delaware	Un­known
	October – December	Kansas	Un­known
2014	January – March	Wisconsin	Un­known
	April – June	New Jersey	Un­known
	July – September	Alabama	Un­known
	October – December	Illinois	Un­known
2015	January – March	Alaska	Un­known
	April – June	Texas	Un­known
	July – September	West Virginia	Un­known
	October – December	Colorado	Un­known
2016	January – March	Indiana	Un­known
	April – June	Montana	Un­known
	July – September	Oregon	Un­known
	October – December	South Dakota	Un­known
2017	January – March	Tennessee	Un­known
	April – June	Virginia	Un­known
	July – September	Georgia	Un­known
	October – December	Florida	Un­known
2018	January – March	Nevada	Un­known
	April – June	Wyoming	Un­known
	July – September	Louisiana	Un­known
	October – December	Washington	Un­known
2019	January – March	Rhode Island	Un­known
	April – June	Iowa	Un­known
	July – September	Maine	Un­known
	October – December	Nebraska	Un­known
2020	January – March	Oklahoma	Un­known
	April – June	Arkansas	Un­known
	July – September	Pennsylvania	Un­known
	October – December	Vermont	Un­known
2021	January – March	Arizona	Un­known
	April – June	New York	Un­known
	July – September	Michigan	Un­known
	October – December	Connecticut	Un­known
2022	January – March	New Hampshire	Un­known
	April – June	Kentucky	Un­known
	July – September	North Dakota	Un­known
	October – December	Maryland	Un­known
2023	January – March	Ohio	Un­known
	April – June	Missouri	Un­known
	July – September	South Carolina	Un­known
	October – December	Massachusetts	Un­known
2024	January – March	Idaho	Un­known
	April – June	Hawaii	Un­known
	July – September	Mississippi	Un­known
	October – December	Minnesota	Un­known
2025	January – March	New Mexico	Un­known
	April – June	North Carolina	Un­known
	July – September	Utah	Un­known
	October – December	California	Un­known
2026	January – March	Delaware	Un­known
	April – June	Kansas	Un­known
	July – September	Wisconsin	Un­known
	October – December	New Jersey	Un­known
2027	January – March	Alabama	Un­known
	April – June	Illinois	Un­known
	July – September	Alaska	Un­known
	October – December	Texas	Un­known
2028	January – March	West Virginia	Un­known
	April – June	Colorado	Un­known
	July – September	Indiana	Un­known
	October – December	Montana	Un­known
2029	January – March	Oregon	Un­known
	April – June	South Dakota	Un­known
	July – September	Tennessee	Un­known
	October – December	Virginia	Un­known
2030	January – March	Georgia	Un­known
	April – June	Florida	Un­known
	July – September	Nevada	Un­known
	October – December	Wyoming	Un­known
2031	January – March	Louisiana	Un­known
	April – June	Washington	Un­known
	July – September	Rhode Island	Un­known
	October – December	Iowa	Un­known