*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0001612151231
Feb014637494965
Mar1232818002842
Apr6845668005758
May991509410180016211
Jun3113431314210036045
Jul260800885840016852
Aug78564283004417
Sep5113216003232
Oct001589001589
Nov0044400444
Dec00287013941681
Total760575902979123310391267