*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 197059000059
1970100001
1971500005
1972400105
1973400004
1974500128
1975600118
197611002316
197711022116
19788003213
197912002014
19809003012
198116006022
198217008126
198316002018
198416004020
198515005121
1986171110433
1987160110431
1988180015336
198920006531
1990190315946
1991160310115135
19921703591392
1993200814714189
199422169215136
199517086612103
19961603621192
19972207601099
199819047916118
1999180729761
200026048014124
2001240556388
2002140276193
200319041002125
2004200350275
2005280355288
20062105874117
20072415824116
200816341100133
200911011080120
20107071552171
20119011550165
20123002801113
20134047323104
201400435443
201530321027
2016100304
2017001113
2018000000
Total729611421182123179