*Excludes Observations that spanned multiple years

Pre 19701
19700
19710
19720
19730
19741
19750
19761
19771
19780
19791
19800
19811
19820
19832
19841
19851
19864
19870
19881
19890
19901
19911
19921
199311
19942
19954
19963
19970
19980
19995
20003
20010
20020
20030
20040
20050
20062
20070
20084
20091
20108
201132
20121
20131
20141
20150
20164
20170
20181
20194
20200
20211
20226
20230
20240
Total112