*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0001522152230
Feb0290838551768
Mar261558001566
Apr6241433001463
May183142267003427
Jun504306297004653
Jul283732161002562
Aug9101645001664
Sep2395400959
Oct0078300783
Nov0170500706
Dec00530221312663
Total11578671124120520124444