*Excludes Observations that spanned multiple years

Pre 19701
19700
19710
19720
19730
19740
19750
19760
19770
19781
19790
19800
19810
19820
19831
19840
19850
19860
19874
19882
19890
19900
19912
19921
19930
19941
19959
19960
19971
19980
19991
20000
20011
20020
20030
20040
20050
20061
20079
20081
20090
201011
201110
20121
20136
20140
20150
20161
20172
20182
20192
20203
20211
202219
202312
20240
Total106