*Excludes Observations that spanned multiple years

Pre 19701
19700
19710
19720
19730
19740
19750
19760
19770
19780
19790
19800
19810
19820
19831
19840
19850
19861
19871
19880
19890
19902
199111
19921
19933
19940
19958
199612
19970
19981
19990
20000
20010
20020
20031
20043
20055
20065
20074
200812
200923
201050
201125
201218
201332
201434
201517
201614
20173
20180
20190
20202
20211
20221
20231
20240
Total293