*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0002533535
Feb001231157281
Mar0020800208
Apr0217200174
May31130169001302
Jun456564572007181
Jul4510834367005495
Aug40463927004013
Sep731704001714
Oct0141600417
Nov0021600216
Dec001250708833
Total1408829119993139822369