*Excludes Observations that spanned multiple years

Pre 197037
19701
19711
19721
19730
19743
19751
19760
19772
197813
19793
19800
19810
19822
198312
19846
19855
19863
19870
19883
19892
19905
19915
19926
199315
19947
19954
199612
199722
199810
199911
200037
200136
200218
200345
200451
200550
2006111
200728
200813
200967
2010162
2011159
2012154
2013108
2014108
201595
2016119
201788
201890
201981
202077
202174
202213
20231
20242
Total1979