*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00010515525
Feb001981256455
Mar0950400513
Apr31068800701
May76156364006527
Jun15191528290019996
Jul16707645390011631
Aug10202645002675
Sep131701001705
Oct0074000740
Nov0028600286
Dec00890765854
Total52324261258311153646608