*Excludes Observations that spanned multiple years

Pre 19709
19701
19712
19720
19730
19740
19750
19760
19770
19780
19790
19800
19810
19820
19830
19840
19852
19864
19870
19881
19890
199010
199131
199211
199339
19941
199552
19968
19974
199813
19993
20000
20010
20020
20033
20042
20059
20061
20073
200833
20098
20104
20110
20120
20131
20140
20150
20168
20179
20185
201910
202026
202133
202229
20238
202411
Total394