*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0013930183058
Feb71491259331871
Mar82802563002725
Apr247863687004020
May1861114747005044
Jun2053656214006784
Jul1241654058004347
Aug26202628002674
Sep8102509002527
Oct111548001550
Nov1093000931
Dec105971016432251
Total8888523039454559437782