*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0002331723195
Feb231133511192262
Mar6303497003533
Apr181185523005659
May1193328367008818
Jun2984506923007671
Jul293432141002477
Aug62102111002183
Sep891896001913
Oct011791001792
Nov011553001554
Dec00700525703275
Total8069973563533686144332