*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0002331773200
Feb231134511192263
Mar6303510003546
Apr181185541005677
May1193358374008828
Jun2984506940007688
Jul293432149002485
Aug62102131002203
Sep891910001927
Oct011800001801
Nov011569001570
Dec00704525753284
Total80610003576233687144472