*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0003682685
Feb032460242491
Mar0863700645
Apr1401808001849
May5511344001400
Jun463166400741
Jul38326300304
Aug6022700233
Sep2027800280
Oct0064800648
Nov0062100621
Dec001850759944
Total981366921316838841