*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0007564571
Feb011851196383
Mar01930500324
Apr02212800150
May04503000480
Jun13136254001429
Jul845743800903
Aug5729600308
Sep0027900279
Oct0036300363
Nov0035100351
Dec001641759924
Total2623182593915196465