*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00011709720
Feb002221248471
Mar0844500453
Apr1642000427
May72770600740
Jun279578900911
Jul421230000354
Aug19431900342
Sep8345400465
Oct1047100472
Nov2142300426
Dec0018328621047
Total10715647321418196828