The August results bring the average for the first eight months of the year to 56.3 percent.
Counting it would bring the total return to 11.23 percent.
This latest rate increase will bring the tax to 7.51 percent for most workers.
That would bring its total to 15 percent of Singer's stock.
They will try to bring it to 13 percent this year.
That brought the fall in the stock price this week to 12 percent.
The October results bring the average for the first 10 months of 1988 to 56.2 percent.
That brings the average for the first half of 1988 to 37.6 percent, according to the report.
This brought the total rise for the year to 4.6 percent.
The September results bring the average for the first nine months of 1988 to 56.1 percent.