*Excludes Observations that spanned multiple years

Pre 19709
19700
19710
19720
19730
19741
19751
19761
19770
19781
19790
19800
19810
19820
19830
19840
19850
19860
19870
19880
19890
19900
19910
19920
19930
19940
19950
19960
19970
19980
19991
20001
20010
20020
20031
20041
20051
20062
20070
20081
20092
20101
20112
20121
20131
20141
201511
20160
20170
20180
20191
20200
20215
20229
20230
20240
Total55