*Excludes Observations that spanned multiple years

Pre 197049
19709
19714
19729
197313
197447
197549
197629
197710
197821
197934
198015
198122
198218
198330
1984114
198540
198662
198744
198857
198957
199055
199167
199262
199374
199473
199588
199666
1997117
199887
1999117
2000122
2001127
2002150
2003151
2004156
2005157
2006140
2007116
2008169
2009159
2010192
2011197
2012173
201374
2014113
2015101
201616
20170
20180
Total3852