*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0001101102
Feb012003051
Mar324134700420
Apr1226942100612
May1846772800979
Jun2771431162001582
Jul1345669300883
Aug194161800678
Sep2542500432
Oct0022100221
Nov00440044
Dec001807290
Total770423469712036094