*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00016768784
Feb012070240448
Mar02777800805
Apr5622107002174
May17832767002867
Jun222863412003720
Jul18681448001534
Aug881045001061
Sep261272001280
Oct0283800840
Nov0045200452
Dec0022929441175
Total725431455518195217140