*Excludes Observations that spanned multiple years

Pre 19704
19700
19711
19720
19730
19740
19750
19760
19770
19780
19790
19800
19810
19823
19830
19840
19850
19860
19870
19880
19890
19900
19910
19923
19932
19940
19950
19961
19970
19981
19995
20002
20012
20020
20032
20042
20055
20062
20072
200810
20093
20105
20111
20123
20131
20142
20151
20161
20171
20181
20193
20202
20211
20224
20231
20240
Total77