*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00218292312
Feb01112278193
Mar0734500352
Apr11333100345
May125917800249
Jun322313500190
Jul26613100163
Aug6212000128
Sep00960096
Oct00940094
Nov0017701178
Dec008109761057
Total7711118022013473357