*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0000158158
Feb0058058116
Mar01520500220
Apr015438900543
May244862200694
Jun137883600927
Jul62536900400
Aug1312600130
Sep00860086
Oct00900090
Nov00960096
Dec00651287353
Total44323294215033813