*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0003423292363
Feb1178937021496
Mar221542001546
Apr641557001567
May6322137002175
Jun212562729003006
Jul14511706001771
Aug3161214001233
Sep3595900967
Oct0075400754
Nov1070100702
Dec01426416352066
Total573681451441466619646