*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0002209211
Feb0059044103
Mar171387001395
Apr8432671002722
May564806777005639
Jun14762922728009167
Jul817142685003480
Aug17191917001953
Sep251288001295
Oct1039700398
Nov0014000140
Dec00781596675
Total3131188614127384927178