*Excludes Observations that spanned multiple years

Pre 197093
197018
197122
197228
197369
197448
197542
197628
197715
19787
197941
198079
198140
198268
198373
1984111
1985138
198678
198782
198845
1989151
1990134
1991124
1992178
1993369
1994415
1995341
1996223
1997211
1998336
1999387
2000335
20011005
2002751
2003487
2004625
2005394
2006604
2007563
2008653
2009782
2010573
2011385
2012403
2013312
2014273
2015365
201635
20170
20180
Total12539