*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0001420042018
Feb0046815781047
Mar032969001001
Apr02896900997
May32810135002948
Jun276360163006550
Jul201819982002821
Aug20852700555
Sep3677600785
Oct001048001048
Nov011040001041
Dec01574419002479
Total7311065765119448223290