*Excludes Observations that spanned multiple years

Pre 1970207
197023
197137
197261
1973143
1974347
1975402
1976287
1977129
1978186
1979205
1980238
1981236
1982239
1983345
1984522
1985360
1986477
1987433
1988421
1989485
1990557
1991382
1992408
1993428
1994464
1995537
1996574
1997537
1998606
1999671
2000625
2001630
2002754
2003755
2004871
2005897
2006823
2007912
20081075
2009849
20101002
2011722
2012733
2013823
2014178
20155
20161
20172
20180
Total22604