*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0001420062020
Feb0051915761096
Mar0321014001046
Apr028987001015
May32807135002945
Jun276333160006520
Jul201810990002820
Aug20852700555
Sep3678200791
Oct001069001069
Nov011066001067
Dec01584418972486
Total7311026783319447923430