*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00011572583
Feb001601193354
Mar0834200350
Apr1631300320
May72255300582
Jun249562100740
Jul361225100299
Aug14323300250
Sep8331200323
Oct1032200323
Nov2125900262
Dec001162735853
Total9315034821415005239