*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan10000010
Feb000303
Mar0061090115
Apr00347611490
May0017623132772
Jun0045522117684
Jul0027926125
Aug0061782186
Sep0001401141
Oct0001120112
Nov00042042
Dec50108059
Total60110423052692739