*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0000105105
Feb001502237
Mar01420043
Apr1122200224
May51545300473
Jun266744400537
Jul321130300346
Aug21841500444
Sep1142400426
Oct0046700467
Nov0011900119
Dec00400181221
Total86104294403083442