*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0007540547
Feb002132213428
Mar0243100433
Apr1433700342
May2854000550
Jun61132200339
Jul6122600233
Aug5233100338
Sep0257000572
Oct0180400805
Nov1044800449
Dec001730630803
Total21314395913835839