*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00022171193
Feb0086147134
Mar1111700119
Apr1813100140
May88023300321
Jun29869300001198
Jul148118000275
Aug5315010159
Sep33890095
Oct00670067
Nov00710071
Dec00683778849
Total6110451492279963621