*Excludes Observations that spanned multiple years

Pre 19703
19700
19710
19720
19730
19740
19750
19760
19774
19780
19792
19800
19810
19820
19830
19840
19850
19861
19874
19880
19890
19907
199115
19925
19935
199423
19955
19965
19976
19980
19992
200014
20016
20020
20032
20048
20055
20063
20070
20081
20091
20100
20112
20120
20130
20140
20150
20160
20170
20181
20190
20202
20210
20220
20230
20242
Total134