*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan000522012206
Feb0372937741509
Mar2101457001469
Apr3101472001485
May3402873002916
Jun5392607002651
Jul1151782001798
Aug2111556001569
Sep011264001265
Oct0183500836
Nov0067600676
Dec00476015031979
Total16130157278447820359