*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0001612141230
Feb014637494965
Mar1232818002842
Apr6845667005757
May991509410170016210
Jun3113431314190036043
Jul260800885770016845
Aug78564279004413
Sep5113216003232
Oct001588001588
Nov0044100441
Dec00286013921678
Total760575902977123310091244