*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00010427437
Feb101560111268
Mar1044900450
Apr361975001984
May251252421002571
Jun1551641471001790
Jul991772500841
Aug25668400715
Sep0274300745
Oct1199400996
Nov0055400554
Dec001210490611
Total3103211029310102811962