*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0000158158
Feb0058058116
Mar01520500220
Apr015639200548
May245062400698
Jun137883800929
Jul62537000401
Aug1312800132
Sep00870087
Oct00900090
Nov00960096
Dec00651287353
Total44327295315033828