*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0007883890
Feb18272971324667
Mar13114765000928
Apr160267603001030
May21650979001245
Jun128981064001290
Jul653668500786
Aug162067300709
Sep81375100772
Oct2148700490
Nov1141300415
Dec01238210441285
Total745661684010225110507