*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0012218101833
Feb67688127151428
Mar93571784001934
Apr3001171420001837
May282951518001895
Jun2941551723002172
Jul240891873002202
Aug27191068001114
Sep341090001097
Oct301064001067
Nov1054601548
Dec00445213831830
Total12495431322036390918957