*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 197059015065
1970300306
1971500106
1972400004
1973200103
1974400105
1975200002
19768003112
19778005013
1978300407
1979100227140
198080210020
198113067026
198213004017
19837009016
19849006015
1985501118
1986110011426
1987172219242
1988160119541
1989140111329
19901303321260
19911204371063
19921501441070
199313039519130
199421017854154
19951401612096
199617046942132
199719018822130
1998190112657203
199920018120122
2000230016627216
2001240113910174
200217001383158
200314101973215
200419022003224
200518011814204
200619112483272
200732002194255
200820602668300
200970126912289
20105013329347
2011181142714461
201244612264281
20136101494160
2014100651783
2015202612085
201600211114
2017000505
2018000000
Total653184941574295306