*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0002414791503
Feb0052876621197
Mar071098001105
Apr3231221001247
May197092212007323
Jun40169284290017397
Jul2152192657007897
Aug9221819001850
Sep371466001476
Oct0286100863
Nov0059200592
Dec10281214461730
Total96293001116433358744180