*Excludes Observations that spanned multiple years

Pre 197024
19701
19711
19721
19730
19741
19751
19762
19772
19782
19790
19801
19810
19824
19832
19840
19851
19862
19871
19881
19892
19901
19917
199214
19937
199412
199510
199611
199737
199823
199913
200025
200120
200217
20033
20046
20055
20061
200710
200829
200935
201028
201137
201285
201387
2014116
2015136
2016214
201748
201858
201916
20204
2021326
2022479
202326
20241
Total1996