*Excludes Observations that spanned multiple years

Pre 197062
19703
19710
19720
19731
19742
19756
19767
19772
197812
19799
19805
19816
19826
198320
198419
198516
198620
198713
198825
198922
199023
199123
199223
199319
199441
199550
199667
1997197
1998122
1999161
2000129
2001136
2002147
2003209
2004159
2005223
2006241
2007156
2008120
2009163
2010253
2011187
2012139
2013102
2014105
2015112
201638
20170
20180
20190
20200
20211
20220
Total3602