*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0001616801696
Feb0277537551535
Mar4132795002812
Apr8313125003164
May695162546005777
Jun1017733673008507
Jul304512346002827
Aug351431001439
Sep081488001496
Oct011331001332
Nov0062500625
Dec00329215571888
Total215134061546421399233098