*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 19700030912
1970000011
1971000000
1972000000
1973000000
1974002002
1975001012
1976000011
1977003014
1978000000
1979002013
1980001023
1981000011
1982101013
1983202015
198460270033
19853140715
1986003014
1987003014
1988103026
1989002035
19903280215
199112130117
199200150217
199360220331
1994922201750
1995522801853
1996802302051
1997911901342
19981103501864
1999713202262
200040650776
2001602802256
2002713202666
2003902902967
200471280743
2005302802758
2006003302356
2007204301459
200800580967
2009006201678
2010117901495
20112194015112
201233129028163
201347175128215
201442135032173
2015103197045255
2016111233048293
201776400181495
201895535089638
2019208464171564
2020191533294649
2021282485095610
2022212405181510
20231050612
Total250554549610565916