*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0004616631709
Feb0060176621270
Mar0621203001265
Apr31961236001435
May217503226007750
Jun41165874850017113
Jul2350462805007874
Aug9251955001989
Sep371539001549
Oct0293000932
Nov0062400624
Dec10278214451726
Total101294281188255377045236