*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan000811031111
Feb0113244376715
Mar0581202001260
Apr01311952002083
May34534348004885
Jun269106406009538
Jul3520132821004869
Aug14311297001342
Sep1795900967
Oct0168700688
Nov0044000440
Dec00286514421733
Total79158921072217292129631