*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0005214219
Feb002005272
Mar01470048
Apr15569700753
May82301576002885
Jun1430682398005480
Jul141431148001305
Aug4243300439
Sep1426100266
Oct0126000261
Nov00660066
Dec00423537582
Total4255755948880312376