*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0009661670
Feb002370211448
Mar31641700436
Apr15435700412
May86637100742
Jun141098108001220
Jul1523655700808
Aug0446700471
Sep0040400404
Oct0027900279
Nov0023000230
Dec001140787901
Total4120713241916597021