What have been the historical US tax rates since 1974?

Question

I need to know the effective income tax rate since 1974 for a married couple with 2 deendents. The only rates i need are those for 1974, 1984, 1994, 2004 for i can analyze the change.

Thanks

Answer 1

Try http://www.irs.gov

If no luck, ask your local reference librarian.

Answer 2

There isn't and hasn't been a specific rate for a married couple with two dependents. The rate depends on how much income that couple has, among other factors like deductions, credits and age of the kids.