*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan10563012891376
Feb24244237397875
Mar199321018001249
Apr47684679001239
May29255699011047
Jun2236552900817
Jul712352000614
Aug9437800391
Sep4234700353
Oct1262000623
Nov2282813836
Dec00456611731635
Total1302293655344286311055