*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0001566567
Feb032250315543
Mar0582500830
Apr4483900847
May25776200794
Jun422450700573
Jul58634100405
Aug35435200391
Sep85148100567
Oct1036000361
Nov4050300507
Dec001410404545
Total254545336112856930