*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0003226229
Feb0067061128
Mar01013300143
Apr11936500385
May31064760001827
Jun25950966001941
Jul645835800480
Aug441125000305
Sep6325800267
Oct0130000301
Nov0017300173
Dec00570457514
Total1432116368737446693