*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan000088
Feb001045
Mar009009
Apr0414900153
May994957410010245
Jun452093212750022252
Jul5727102493005260
Aug29170100731
Sep1413600141
Oct00320032
Nov006006
Dec00102728
Total14133146554403938870