*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0001620482064
Feb0295539071867
Mar4133421003438
Apr8363849003893
May856571568007224
Jun1249093691009908
Jul328112574003417
Aug452106002115
Sep192268002278
Oct011905001906
Nov0090300903
Dec00444219782424
Total258165411968421493341437