*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00013730743
Feb011900240431
Mar02167700698
Apr3531893001949
May11832659002753
Jun192873392003698
Jul16681437001521
Aug881011001027
Sep361184001193
Oct1181800820
Nov0044600446
Dec0022929441175
Total615281393615191416454