*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0004829833
Feb002401283524
Mar11237300386
Apr261636900411
May733443100538
Jun1667162400861
Jul1043474500883
Aug41174400759
Sep1057500576
Oct0037800378
Nov0038800388
Dec0026238911156
Total3751785129820037693