*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0001321062119
Feb47776128571656
Mar105551941002101
Apr3581091638002105
May323881770002181
Jun3351542136002625
Jul333822346002761
Aug33221439001494
Sep271296001305
Oct101230001231
Nov0064800648
Dec00533215562091
Total14945241575327451922317