*Excludes Observations that spanned multiple years

Pre 19700
19700
19710
19720
19731
19740
19759
197614
197732
19780
19790
19800
19810
19822
19835
19845
19853
19861
19871
198824
19896
199030
199117
199236
19938
199423
199526
199624
199723
19988
199922
200038
200125
200221
200345
200455
200543
200629
200739
200860
200917
201019
201115
201229
201314
201413
20151
20160
20170
20180
20190
20200
20211
20220
20230
20240
Total784