*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0000105105
Feb001502237
Mar01420043
Apr1122500227
May51545800478
Jun266744800541
Jul321130300346
Aug21841600445
Sep1142500427
Oct0046800468
Nov0011900119
Dec00400181221
Total86104295903083457