year	city	state	country	long	lat
1930	Charlottesville	VA	USA	-78.479	38.0299
1930	Cleveland	OH	USA	-81.669722	41.482222
1932	Washington	DC	USA	-77.036667	38.895111
1932	Atlantic City	NJ	USA	-74.451082	39.377297
1934	New York City	NY	USA	-73.938611	40.664167
1935	Philadelphia	PA	USA	-75.17	39.95
1936	New Haven	CT	USA	-72.923611	41.31
1937	Cambridge	MA	USA	-71.110556	42.373611
1938	Pittsburgh	PA	USA	-80	40.441667
1939	Philadelphia	PA	USA	-75.17	39.95
1940	New York City	NY	USA	-73.938611	40.664167
1941	Chicago	IL	USA	-87.627778	41.881944
1942	Cambridge	MA	USA	-71.110556	42.373611
1945	Philadelphia	PA	USA	-75.17	39.95
1946	Cleveland	OH	USA	-81.669722	41.482222
1946	Chicago	IL	USA	-87.627778	41.881944
1948	Washington	DC	USA	-77.036667	38.895111
1949	Philadelphia	PA	USA	-75.17	39.95
1950	Boston	MA	USA	-71.063611	42.358056
1951	Ann Arbor	MI	USA	-83.748333	42.281389
1952	New York City	NY	USA	-73.938611	40.664167
1952	Philadelphia	PA	USA	-75.17	39.95
1954	Yellow Springs	OH	USA	-83.892778	39.801667
1955	Philadelphia	PA	USA	-75.17	39.95
1956	Chicago	IL	USA	-87.627778	41.881944
1957	Ann Arbor	MI	USA	-83.748333	42.281389
1958	Cambridge	MA	USA	-71.110556	42.373611
1959	Madison	WI	USA	-89.4	43.066667
1960	Washington	DC	USA	-77.036667	38.895111
1961	Columbus	OH	USA	-82.983333	39.983333
1962	Philadelphia	PA	USA	-75.17	39.95
1963	Boulder	CO	USA	-105.27966	40.017624
1964	Mexico City	MX	MEX	-99.133333	19.433333
1965	University Park	PA	USA	-77.862778	40.796111
1966	Berkeley	CA	USA	-122.272778	37.871667
1967	Chapel Hill	NC	USA	-79.033333	35.933333
1968	Detroit	MI	USA	-83.045833	42.331389
1969	Mexico City	MX	MEX	-99.133333	19.433333
1970	Washington	DC	USA	-77.036667	38.895111
1971	Boston	MA	USA	-71.063611	42.358056
1972	Lawrence	KS	USA	-95.235278	38.971667
1973	Dallas	TX	USA	-96.803889	32.782778
1974	Amherst	MA	USA	-72.516667	42.366667
1975	Denver	CO	USA	-104.984722	39.739167
1976	St. Louis	MO	USA	-90.197778	38.627222
1977	Seattle	WA	USA	-122.333056	47.609722
1978	Toronto	ON	CAN	-79.4	43.7
1979	San Francisco	CA	USA	-122.416667	37.783333
1980	Niagara Falls	NY	USA	-79.017222	43.094167
1981	Detroit	MI	USA	-83.045833	42.331389
1982	Eugene	OR	USA	-123.086667	44.051944
1983	Indianapolis	IN	USA	-86.148	39.791
1984	Philadelphia	PA	USA	-75.17	39.95
1985	Knoxville	TN	USA	-83.942222	35.972778
1986	Albuquerque	NM	USA	-106.609991	35.110703
1987	New York City	NY	USA	-73.938611	40.664167
1988	Kansas City	MO	USA	-94.57855	39.099725
1989	San Diego	CA	USA	-117.1625	32.715
1990	Miami	FL	USA	-80.224145	25.787676
1991	Milwaukee	WI	USA	-87.95	43.05
1992	Las Vegas	NV	USA	-115.136389	36.175
1993	Toronto	ON	CAN	-79.4	43.7
1994	Denver	CO	USA	-104.984722	39.739167
1995	Oakland	CA	USA	-122.270833	37.804444
1996	Research Triangle Park	NC	USA	-78.862778	35.908056
1997	St. Louis	MO	USA	-90.197778	38.627222
1998	Salt Lake City	UT	USA	-111.883333	40.75
1999	Columbus	OH	USA	-82.983333	39.983333
2000	San Antonio	TX	USA	-98.5	29.416667
2001	Kansas City	MO	USA	-94.57855	39.099725
2002	Buffalo	NY	USA	-78.849444	42.904722
2003	Tempe	AZ	USA	-111.943056	33.429444
2004	Tampa	FL	USA	-82.465	27.971
2005	Milwaukee	WI	USA	-87.95	43.05
2006	Anchorage	AK	USA	-149.8925	61.218056
2007	Philadelphia	PA	USA	-75.17	39.95
2008	Columbus	OH	USA	-82.983333	39.983333
2009	Chicago	IL	USA	-87.627778	41.881944
2010	Albuquerque	NM	USA	-106.609991	35.110703
2011	Minneapolis	MN	USA	-93.266667	44.983333
2012	Portland	OR	USA	-122.681944	45.52
2013	Knoxville	TN	USA	-83.942222	35.972778
2014	Calgary	AB	CAN	-114.066667	51.05
2015	St. Louis	MO	USA	-90.197778	38.627222