*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0005578583
Feb011651247414
Mar3847000481
Apr6749300506
May6816969001791
Jun1545642491007070
Jul1126142088004713
Aug51373400752
Sep3437700384
Oct4028500289
Nov0025900259
Dec001150616731
Total53802784466144117973