*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 19703025093121
1970000033
1971000088
1972000055
1973012069
19740450615
19751020710
19760110810
19770110810
1978001089
19790230813
19800100910
198100101213
198202101215
198301201114
198400201315
198501301317
198613601525
198700701724
198814501727
198916601629
199042901631
1991752411451
1992672101145
1993992602064
19945371902283
19955221502163
19965201401150
199712151902268
19983202401663
1999491801849
2000734123025189
20013103302874
20023135202391
200311959024103
200452199022147
2005121102026150
2006115113031160
200731484627134
20083135741794
2009675502593
201001584026125
201111281042136
2012845102055210
20131458142134249
20142356136049264
201530108224176439
2016151062000104425
201724144233080481
201822119227194463
201950111245175482
202024124331087566
202121151326093591
202214195180070459
202301460047
202404540260
Total346158936501516017201