*Excludes Observations that spanned multiple years

Pre 197033
19701
19712
19720
19730
19743
19750
19761
19771
19782
19792
19802
19812
19821
19832
19840
19850
19860
19875
19881
19898
19900
19917
19925
19931
19942
199512
19964
19976
199812
199915
2000261
2001110
2002430
20031565
2004466
2005490
20061559
2007676
2008669
20095667
20101010
20111141
2012419
20131698
20141535
2015235
2016667
2017774
2018413
2019454
2020245
2021814
2022299
2023231
202419
Total21977