*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0000375375
Feb001330157290
Mar0248000482
Apr01062900639
May63365800697
Jun321837200422
Jul43622000269
Aug20011700137
Sep20680070
Oct0014300143
Nov0020600206
Dec001071599707
Total103693133111314437