*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0002828032831
Feb001228712722507
Mar0282530002558
Apr3292739002771
May258595194008814
Jun68169613310017360
Jul3449663401008401
Aug15323600003647
Sep263274003282
Oct122358002361
Nov002168002168
Dec10883219562842
Total149306192270637603159542