*Excludes Observations that spanned multiple years

Pre 19703
19700
19710
19720
19732
19741
19752
19760
19770
19780
19792
19803
19810
19820
19830
19840
19850
19860
19870
19880
19893
19903
19910
19920
19933
199416
19951
19967
19975
19980
19991
20002
20010
20020
20031
20042
20051
20060
20070
20080
200922
201024
201112
201214
20137
20140
20152
20163
20172
20185
20190
20203
202127
20220
20230
20240
Total179