*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0000434434
Feb001880177365
Mar0262600628
Apr01276900781
May63480100841
Jun331941200464
Jul42723200281
Aug20013500155
Sep10840085
Oct0016500165
Nov0027600276
Dec001291624754
Total102743817112355229