*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0008686694
Feb001870248435
Mar0229600298
Apr0846600474
May03280355003635
Jun46003553006560
Jul610662724003796
Aug13572304002374
Sep831331001342
Oct2040800410
Nov0037900379
Dec0018109511132
Total331041991848188521529