*Excludes Observations that spanned multiple years

Pre 197058
19702
19714
19721
19733
19743
19756
19764
19775
19789
19797
19806
198110
19823
198310
198410
19853
19863
19872
19888
19899
199019
199119
199237
199320
199428
199536
199638
199731
199859
1999106
2000141
200150
2002105
200353
200421
200514
20064
200717
200833
200918
201033
201129
2012107
201318
20145
201531
20166
20173
Total1247