*Excludes Observations that spanned multiple years

Pre 19708
19700
19710
19720
19730
19741
19750
19761
19771
19780
19790
19800
19811
19820
19830
19840
19850
19860
19870
19881
19890
19900
19912
19920
19931
19940
19950
19960
19970
19980
19991
20000
20010
20021
20031
20044
20050
20062
20070
20083
20092
20100
20111
20120
201310
20141
20151
20160
20170
20180
20191
20202
20210
20221
20234
20240
Total51