*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0003665236559
Feb0419432222914260
Mar9244078004111
Apr16444024004084
May493636751007163
Jun106239777180010221
Jul424543898004394
Aug392758002770
Sep093567003576
Oct013682003683
Nov002825002825
Dec011551646716229
Total225330642795641348559875