*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0003682685
Feb032460243492
Mar0863700645
Apr1401809001850
May5511346001402
Jun463166400741
Jul38326300304
Aug6022700233
Sep2027900281
Oct0065200652
Nov0062600626
Dec001850760945
Total981366934316858856