*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970002002
1970000000
1971000000
1972001001
1973000000
1974003003
1975001001
1976011002
1977103015
1978014016
1979101013
1980001023
19810450312
1982131027
1983002002
1984002013
1985000011
1986003014
1987014027
1988102014
1989006039
199005171124
1991015028
1992011110022
199300240428
199409130224
19950790218
199605100217
1997116019
19981640213
1999018009
20000380415
200101940124
2002014038
2003004015
20040840416
200503320136
200600130215
20071250210
20080870318
2009005038
20100480214
201100110314
201212140219
201302210124
201405140120
201512240128
201612280334
2017413201047
201812170424
2019013370757
2020011057
2021002002
2022000000
Total15134444198692