*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0001313314
Feb0167084152
Mar01016500175
Apr13824000279
May3156855001626
Jun44682109004795
Jul111763882002656
Aug11947700497
Sep2544900456
Oct1137100373
Nov0022500225
Dec00950531626
Total3380773135192812174