*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0002330332
Feb0073096169
Mar0949400503
Apr0541300418
May26054200649
Jun13346571003549
Jul15839460001314
Aug5322000228
Sep1026900270
Oct0034300343
Nov0016500165
Dec001060674780
Total3649262656211008720