*Excludes Observations that spanned multiple years

Pre 1970112
197027
197133
197259
197370
197487
197568
197665
197757
197860
1979100
1980143
1981155
1982174
1983178
1984214
1985240
1986273
1987196
1988202
1989315
1990415
1991333
1992404
1993418
1994351
1995342
1996349
1997338
1998392
1999427
2000363
2001430
2002436
2003452
2004591
2005564
2006573
2007539
2008587
2009617
2010681
2011548
2012534
2013411
2014420
2015501
2016139
20174
20180
20191
Total14988