*Excludes Observations that spanned multiple years

Pre 197025
19701
19711
19720
19730
19742
19750
19760
19771
19782
19791
19801
19812
19820
19832
19840
19850
19861
19873
19881
19890
19902
19913
19921
19936
19946
19957
19963
19971
19982
19997
20002
20011
20024
2003205
200412
2005238
200681
200761
200832
2009113
201044
201142
201240
201336
201419
201526
201630
201750
201822
20198
20208
202137
202221
202313
20247
Total1233