*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0002279281
Feb0070081151
Mar0943500444
Apr0536800373
May25504200594
Jun12332870003410
Jul12796426001234
Aug4317300180
Sep1020200203
Oct0027200272
Nov0011300113
Dec00760596672
Total314691224729567927