*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 19700280414
1970000000
1971002002
1972002002
1973011013
1974010001
1975030014
1976000011
1977001012
1978001001
1979000011
1980011002
1981001001
1982000000
1983001001
1984002002
1985013004
1986002002
1987014005
1988022004
1989124007
1990015006
199100110112
19921380012
19932370012
19941870016
19950980017
1996026008
19974790020
199825100118
19991470214
200024140121
20013540113
200226120020
2003513170136
2004312110127
200517100119
200624150021
200716210028
200806120018
200903100114
2010334360073
2011106250546
201259253001115
2013540370082
20149564700112
201510793900128
20161114910303266
2017141007703194
201891117504199
2019321249501252
2020751696801313
2021592008102342
2022311526101245
20231090010
2024002002
Total359136710240402790