*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00022170192
Feb0086147134
Mar1111700119
Apr1813100140
May88023100319
Jun29868300001197
Jul148118000275
Aug5314910158
Sep33890095
Oct00650065
Nov00700070
Dec00683778849
Total6110441486279953613