*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0001033743384
Feb371032511622209
Mar71642771002906
Apr238804100004418
May205995452005756
Jun2353757182007792
Jul1261664685004977
Aug27203398003445
Sep6103360003376
Oct212056002059
Nov101304001305
Dec108491022623122
Total9158223618925679844749