*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 197010160219
1970000000
1971000011
1972001001
1973000011
1974002002
1975003003
1976001001
1977001001
1978006006
1979011002
1980001001
1981000000
1982001023
1983001001
1984104005
1985202004
1986113027
1987203005
1988102025
198911100214
19902180112
199143110220
199221130016
19935270216
199451120119
199512120217
199630110115
199711210225
199842150122
199931160222
200030110519
200150140221
200233150021
200373120325
200431140523
200521180324
200672150226
20073490319
200810140217
200982100121
2010127180138
201174250440
201242180428
201321480859
201436270440
2015112440663
2016102510467
201753430960
2018134401058
2019436420789
20206355109101
2021118440366
2022911420769
2023015006
2024100001
Total15716481801281267