*Excludes Observations that spanned multiple years

Pre 197069
197038
197126
197246
197325
197444
197527
197639
197746
197841
197971
198087
1981122
1982129
1983156
1984180
1985192
1986215
1987134
1988136
1989302
1990314
1991271
1992308
1993249
1994240
1995247
1996285
1997298
1998282
1999336
2000298
2001349
2002377
2003339
2004404
2005419
2006432
2007475
2008524
2009547
2010568
2011423
2012472
2013342
2014357
2015388
2016123
20170
20180
Total11792