*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0008669677
Feb001712196369
Mar72335300383
Apr61235600374
May3854517800761
Jun110894148001152
Jul127154854001135
Aug343872700799
Sep10459300607
Oct0034200342
Nov0023000230
Dec0015729661125
Total332167041091218317954