*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0002420512075
Feb01076457791558
Mar0281389001417
Apr8421407001457
May162584216002816
Jun222469236002727
Jul182621108001388
Aug551016001026
Sep1294100944
Oct0188600887
Nov0080800808
Dec00511519812497
Total705403928234481119600