*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0001321142127
Feb47822128631708
Mar111562049002216
Apr3571121720002189
May341881872002301
Jun3481552224002727
Jul344832376002803
Aug33241483001540
Sep271375001384
Oct101306001307
Nov0068100681
Dec00550215722124
Total15415321645827454923107