*Excludes Observations that spanned multiple years

Pre 19702
19700
19711
19720
19730
19740
19750
19760
19770
19781
19790
19800
19810
19820
19830
19840
19850
19860
19870
19881
19890
19902
19912
19922
199316
19940
19950
19960
19970
19980
19991
20000
20010
20021
20030
20040
20050
20060
20070
20080
20091
20101
20110
20121
20131
20140
20150
20160
201712
20181
20190
20201
20210
20220
20231
20240
Total48