*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0007324331
Feb001132132247
Mar0022500225
Apr0013000130
May633147100808
Jun1414601419002893
Jul158661135002016
Aug6879400808
Sep2362100626
Oct0039900399
Nov0022200222
Dec00593384446
Total4326685588128409151