*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0003138373868
Feb071356614972866
Mar9262555002590
Apr7752537002619
May204999387005406
Jun707068372007510
Jul4918512757004657
Aug9292667002705
Sep162410002417
Oct011861001862
Nov031507001510
Dec00814833314153
Total165140651922345866542163