*Excludes Observations that spanned multiple years

Pre 19706
19700
19710
19720
19731
19740
19750
19761
19770
19781
19790
19800
19810
19820
19830
19840
19850
19860
19876
198810
19890
19900
19912
19920
19930
19941
19952
19960
19970
19980
199911
200022
20010
20020
20030
20040
20050
20060
20070
20080
20091
20101
20110
20121
20130
20140
20150
20161
20170
20181
20191
20206
202112
202219
202328
202422
Total156