*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 197000120106118
1970001045
197100101011
1972000077
1973001078
1974002057
1975000099
197600101415
197700101314
197800201113
197900302124
198000501419
198100302023
198200002020
198300301720
198400101819
198500401923
198600301417
198700902231
198800402327
198900301720
199000532230
1991001602238
199200602228
1993001402943
199400912535
1995001012536
199600401721
199700802836
1998001212942
199900601521
2000001113547
2001001413752
2002002301841
2003002002040
2004001602642
2005001303346
2006001602844
2007001703754
2008002042549
2009002704067
2010001303043
2011005514197
20120065186152
20130098086184
2014001490142291
201500950146241
2016001580176334
2017002313250484
2018001721206379
2019001965121322
2020002370153390
2021002030172375
2022001260230356
2023006017
2024005027
Total0021352327664924