*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0001105106
Feb012702957
Mar264436800438
Apr1017443900614
May16867812001047
Jun2521431257001652
Jul1235675600935
Aug164170500762
Sep2552700534
Oct1027200273
Nov00750075
Dec0026080106
Total689431526412146599