*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0002556095634
Feb021824421203950
Mar9143853003876
Apr34203805003859
May7412646963008301
Jun66373490750012875
Jul2312195046006288
Aug5133033003051
Sep293206003217
Oct022773002775
Nov002256002256
Dec001255738345096
Total213627743089361156361178