*Excludes Observations that spanned multiple years

Pre 19706
19702
19712
19720
19730
19741
19752
19761
19771
19782
19794
19802
19811
19823
19833
19842
198550
198635
198715
198881
198931
199028
199152
199238
199347
199448
1995150
199649
199759
199817
199935
200040
200150
200215
200376
200476
200559
200666
200777
200879
200967
2010106
201178
201294
201392
201482
201579
201681
201771
201877
201971
202074
2021148
2022141
202321
202424
Total2611