*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0000132132
Feb002903059
Mar00480048
Apr11545800474
May94123482004614
Jun58924210160010316
Jul367462698003480
Aug3111168001182
Sep2892500935
Oct0015300153
Nov00170017
Dec00290258287
Total109141457023042021697