*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0001612141230
Feb014637494965
Mar1232818002842
Apr6815652005739
May991508810040016191
Jun3113431314160036040
Jul258800885660016832
Aug78554272004405
Sep5113213003229
Oct001586001586
Nov0044100441
Dec00286013921678
Total758575802971723310091178