*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970024028
1970001001
1971002002
1972001001
1973013015
1974020002
1975002002
1976022004
1977002002
1978002013
1979012003
1980011002
1981000011
1982011002
1983004004
1984002002
1985102014
1986007029
19870270312
1988026008
19890680216
19900840416
19913890121
1992256140072
1993181100193
199404041905428
199514121403430
19960316500321
199711311101144
19981320704332
199904090150
200002751202289
2001081140297
200212321700250
2003155120371
200402651302280
200501151700132
200611151402132
200701181303134
2008068280096
2009012220034
20100754301119
2011147231274
20121842905119
201301084703158
201411037803185
201511127208193
2016214176012231
2017315488111257
2018417312401302
201901297701207
2020015214702301
202111359106233
202231418704235
2023020002
2024000000
Total304688130521066131