*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0006489495
Feb012060273480
Mar1475300758
Apr4568700696
May22762400653
Jun332033900392
Jul37424500286
Aug18321500236
Sep84133400419
Oct0028400284
Nov0034100341
Dec10900294385
Total200454118610565425