*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan000088
Feb001045
Mar008008
Apr07312700200
May1994147750010208
Jun491927013070020626
Jul5222402388004680
Aug22150700530
Sep149500100
Oct00220022
Nov006006
Dec00102728
Total14331002523703936421