*Excludes Observations that spanned multiple years

Pre 197082
19700
19710
19721
19730
19745
19752
19763
19772
19782
19795
19801
19812
19820
19833
19843
19850
19860
19870
19883
19892
19900
19913
19928
19933
199412
199510
19966
199715
19983
19993
20001
200115
20020
20033
2004102
200511
200636
200751
200841
200923
201061
201178
20126
201317
201421
2015137
2016110
2017185
2018259
201966
202027
202124
202247
202332
20240
Total1532