*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0006378384
Feb01150198250
Mar0769700704
Apr0231557001580
May21111218001331
Jun76065200719
Jul28423200264
Aug5114900155
Sep1022400225
Oct0040100401
Nov0023900239
Dec00670260327
Total43207558677366579