*Excludes Observations that spanned multiple years

Pre 197032
19701
19712
19720
19730
19743
19750
19761
19771
19782
19792
19802
19812
19821
19832
19840
19850
19860
19875
19883
198924
19900
19917
19925
19931
19942
199512
19964
19979
199812
199915
2000237
200184
2002363
2003920
2004338
2005422
20061043
2007643
2008637
20095416
2010772
20111076
2012300
20131056
20141349
2015232
2016327
2017354
2018237
2019282
20200
Total16238