*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00011286297
Feb00880120208
Mar0314200145
Apr102318300216
May516130400416
Jun14415745900760
Jul18720143500823
Aug504728500382
Sep5222600233
Oct2020500207
Nov0116000161
Dec001035468576
Total4494952590168744424