*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00010224572559
Feb0114564111902688
Mar8595691005758
Apr271206914007061
May1808870534009584
Jun1708977686009833
Jul524153771004238
Aug473587003598
Sep083962003970
Oct013436003437
Nov001906001906
Dec007237417662563
Total4411845832666217541357195