*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0004351355
Feb00115095210
Mar7673300746
Apr2231963001988
May11861315001412
Jun188886000966
Jul30922600265
Aug6735800371
Sep0145400455
Oct0050200502
Nov0022600226
Dec00761514591
Total74220682859608087