*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00014785799
Feb15272681257568
Mar12312254500790
Apr17124149900911
May18850856001094
Jun11095905001110
Jul553656900660
Aug13747200492
Sep61355600575
Oct1237000373
Nov1131600318
Dec0119529131111
Total68359555511719558801