*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0002414791503
Feb0052876621197
Mar071098001105
Apr3231221001247
May196998212007229
Jun40163884290016857
Jul2150462657007724
Aug9221818001849
Sep371464001474
Oct0286000862
Nov0058200582
Dec10278214451726
Total96284931114733358643355