*Excludes Observations that spanned multiple years

Pre 19709
19700
19710
19720
19730
19740
19750
19763
19770
19781
19790
19800
19810
19820
19837
19840
19850
19861
19871
19880
19891
19908
199111
19921
19938
199419
199523
199614
19975
199815
19990
20000
20010
20020
20031
20041
20052
20063
20072
200852
200977
201079
201135
201259
201353
201446
201539
201615
20171
20180
20190
20201
20210
20222
20230
20241
Total596