*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 19700580013
1970001001
197101100011
1972000000
1973000000
1974000000
1975010001
1976020002
1977000000
1978011002
1979000000
1980000000
1981011002
1982002002
1983000000
1984000000
1985110002
1986012003
1987032005
1988043007
1989013004
199001120013
19912730012
199212910031
199303930042
199404670053
1995031100041
199603410035
199703390042
199804150046
199901770024
200014290052
2001019110030
200203880046
2003150120063
200406070067
200507470081
200605270059
2007061300091
2008051170068
2009210170029
2010027390066
2011018340052
20121605200113
20130615800119
20140757400149
201501029400196
201611179900217
2017011811800236
2018120214800351
2019318116500349
2020081009
2021040004
2022000000
Total1417491078002841