*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 197002309499
1970001034
1971000077
1972000055
1973021047
1974021058
1975013059
1976022059
19770230813
1978001056
197900100717
19800140712
19810140813
19820130913
19830310812
198402101114
1985020068
1986091001231
1987051201229
198803601322
19890870823
199002370939
1991122180748
1992215290652
1993219460976
199415511309178
1995321135010169
1996746123011187
1997153241012307
1998045247010302
1999032146012190
2000248248016314
2001430362013409
2002242266010320
2003026327014367
2004254260012328
20052137319012470
20062146221012381
2007129147318198
20080398857139
2009066133012211
20102122123016263
20110168149016333
20121234143021399
20131226105015347
20142292104022420
20150339156025520
20160405230040675
20171527286040854
20183588275023889
20191617285141945
202016913740341100
20211644267136949
20221651209026887
202306200127
2024000000
Total46650462751081913654