*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0009660669
Feb002370211448
Mar31641700436
Apr15435600411
May86637100742
Jun141099107001220
Jul1523655700808
Aug0446600470
Sep0040400404
Oct0027500275
Nov0022900229
Dec001140787901
Total4120723233916587013