*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0002314011424
Feb004009390799
Mar071016001023
Apr2461777001825
May102983717003710
Jun2733713200006598
Jul29278801001108
Aug14243800454
Sep3561400622
Oct1168000682
Nov0253700539
Dec00302514731780
Total8666951048237326420564