*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0001420062020
Feb0051915751095
Mar0321013001045
Apr028983001011
May32807134002944
Jun276333160006520
Jul201810990002820
Aug20852700555
Sep3678200791
Oct001069001069
Nov011065001066
Dec01584418972486
Total7311026782619447823422