*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0002364366
Feb00113091204
Mar01044800458
Apr0191750001769
May61303252003388
Jun662202982003268
Jul922060700719
Aug21341800442
Sep1246500468
Oct0059700597
Nov0034600346
Dec001200470590
Total18640411098292512615