*Excludes Observations that spanned multiple years

Pre 197011
197023
197139
197222
197318
197441
19757
19763
19779
197832
197980
19801
198169
19826
198312
198435
198512
19866
19872
198820
198930
199031
199146
199228
199352
199452
199568
199654
199765
199863
1999120
2000194
2001232
2002156
200352
200428
200526
200642
200715
200812
200940
201049
201138
201218
201314
201414
201514
201613
20175
Total2019