*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0002110061027
Feb0133064319642
Mar01391104001243
Apr14261603002030
May54681360005046
Jun258224446008695
Jul3015442635004209
Aug1126981001018
Sep1971400724
Oct0152800529
Nov0032000320
Dec00199512021406
Total7315063919630252726889