*Excludes Observations that spanned multiple years

Pre 1970152
197026
197124
197237
197326
197448
197516
197631
197735
197829
197953
198088
1981110
1982118
1983151
1984152
1985149
1986267
1987229
1988218
1989366
1990405
1991285
1992276
1993234
1994284
1995367
1996415
1997409
1998350
1999394
2000514
2001457
2002628
2003434
2004594
2005569
2006640
2007592
2008766
2009722
2010737
2011549
2012536
2013632
2014152
20152
20160
20170
Total14268