*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0007325332
Feb001162133251
Mar0022700227
Apr0013000130
May633147100808
Jun1414601419002893
Jul158661135002016
Aug6879500809
Sep2362100626
Oct0039900399
Nov0022200222
Dec00593384446
Total4326685594128429159