*Excludes Observations that spanned multiple years

Pre 19701
19700
19710
19720
19730
19744
19750
197614
197712
19780
19791
19801
198116
19821
19834
19842
19853
19865
19870
19880
19891
19902
199167
19928
19935
19944
199529
19964
19973
19983
19999
20000
20015
20028
20036
20044
20053
20063
20074
200815
200929
201020
201139
201214
201316
201414
20157
201622
201767
201833
201974
202031
202145
202257
202364
202414
Total793