*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0003360566089
Feb853120282021864350
Mar643814162004886
Apr9801032938004021
May845793443004367
Jun594973213003904
Jul219332950003202
Aug74122336002422
Sep1031779001792
Oct232092002097
Nov222506002510
Dec101567637685342
Total345544429014591201044982