*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0002504506
Feb1241522196375
Mar09427700371
Apr018831600504
May81302186001496
Jun151956356002327
Jul10763451001224
Aug67547700558
Sep06751900586
Oct05231800370
Nov03024500275
Dec091060605720
Total4045603403413059312