*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0001205206
Feb0066053119
Mar5137800384
Apr361133001142
May5981369001472
Jun29891345001463
Jul564236200460
Aug16920700232
Sep1023800239
Oct0041500415
Nov0024200242
Dec00570263320
Total115245581215216694