*Excludes Observations that spanned multiple years

Pre 197043
19701
19710
19720
19730
19745
19750
19760
19771
197821
19794
19805
19817
19828
19837
19844
19852
19864
19875
19887
19890
19901
19910
19922
19932
19947
19956
199615
199723
19989
199918
200030
200118
200213
200372
200459
200532
200666
20076
200815
200917
201040
201168
201213
201315
201416
201520
201620
20170
20180
20190
20200
20210
20220
Total727