*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0009659668
Feb002360211447
Mar31641600435
Apr15335600410
May86637100742
Jun141099107001220
Jul1523655700808
Aug0446600470
Sep0040400404
Oct0027400274
Nov0022900229
Dec001130785898
Total4120713229916557005