*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan30727000334
Feb131932566405
Mar00660117624
Apr00971000561153
May0028117101322123
Jun0020510331391377
Jul006048421565
Aug0033432348
Sep0053813389
Oct0002800280
Nov0002690269
Dec763101380902
Total12013766064953768769