*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0005689694
Feb012161301519
Mar3854000551
Apr6759300606
May68011178001985
Jun1743753116007508
Jul1224972547005056
Aug6171176001199
Sep3456200569
Oct4042500429
Nov0032100321
Dec001290660789
Total577710108036165020226