From 1976 to 1984 growth declined to 2 percent a year.
But in that year the percentage declined to 76 percent.
That figure will decline to less than 10 percent by fiscal year 1996.
But it has declined since, to 6.2 percent in December.
Money market accounts declined by 2 basis points, to 7.07 percent.
By 1994, the effective rate had declined to 32 percent.
The Republican plan calls for the top rate on all capital gains to decline to 19.8 percent.
A decade later, that figure had declined to 14 percent.
Under Bush's presidency, the number has declined to just 0.2 percent.
This number had declined to less than 6 percent by 2001, the study showed.