*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970007029
1970001001
1971002013
1972000000
1973002002
1974002013
1975006017
1976002024
197710110113
1978001012
1979007018
1980005016
1981004048
1982003014
1983003014
1984005016
1985004015
198600100212
198710120215
198820110215
198900210324
199034440354
199143290238
199211170423
199323460354
199403840794
199521520459
199686600276
19970711907133
1998099607112
1999259409110
20002412103130
20013096011110
2002119305100
20031014505151
20040020705212
20051117204178
20060115806165
20070114005146
20081117502179
20099121504229
20108229804312
20118038008396
2012142472022510
2013100543029582
2014130501019533
2015111656018686
2016100814133858
20176310590251093
201811110860371135
20195111550351196
20204212120581276
20212013170391358
20222210760391119
202300230023
202400150116
Total1486612889149313597