*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00015948963
Feb001731222396
Mar0439700401
Apr41078300797
May51303269001577
Jun81388451001847
Jul81851206001399
Aug7201706001733
Sep281507001517
Oct1270900712
Nov0049900499
Dec00225112831509
Total352920792517245313350