*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0005220225
Feb0074053127
Mar5147600482
Apr361322001331
May5991461001565
Jun32901367001489
Jul564336300462
Aug18921600243
Sep1026400265
Oct0045700457
Nov0024800248
Dec00570263320
Total120248630555367214