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*Excludes Observations that spanned multiple years

Pre 19703
19700
19710
19720
19730
19740
19750
19760
19770
19780
19791
19800
19811
19820
19832
19840
19850
19860
19872
19887
19891
19905
19911
199223
19935
19948
19952
19964
19973
19982
199936
200023
200112
20024
20034
20042
20050
20060
20070
200816
20098
20100
20111
20122
20132
20141
20150
20163
20172
20180
20190
20203
20214
202211
20237
20240
Total211