*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0005747752
Feb032091258471
Mar0843400442
Apr31754800568
May6884162001052
Jun2514891301002815
Jul29791169001277
Aug8560700620
Sep0459500599
Oct1036300364
Nov0032300323
Dec00166111261293
Total72248958777213110576