*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0001420042018
Feb0046815781047
Mar032971001003
Apr02897000998
May32810135002948
Jun276360163006550
Jul201819982002821
Aug20852700555
Sep3677700786
Oct001048001048
Nov011040001041
Dec01574419002479
Total7311065765519448223294