*Excludes Observations that spanned multiple years

Pre 19706
19700
19710
19720
19730
19740
19750
19761
19770
19780
19790
19800
19812
19821
19832
19840
19853
19860
19871
19880
19890
19901
19911
19923
19938
19948
199513
199619
19973
19984
19991
20001
20010
20020
20030
20040
20051
20062
20072
20082
20093
20106
20111
201215
201327
20140
20151
20163
20170
20181
20190
20200
20212
20220
20231
20240
Total145