*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0002313981421
Feb003999388796
Mar071016001023
Apr2461767001815
May102980715003705
Jun2733713199006597
Jul29278798001105
Aug14243400450
Sep3561400622
Oct1167800680
Nov0253500537
Dec00301514711777
Total8666921045637325720528