Can you help me solve a magic square with the numbers, -4,-8,-12,-16,0,4,8,12,16?

Note that if you divide each of these numbers by 4, and then add 5, you get 1,2,3,. 8 and 9. If you know how to construct a classic 3x3 magic square using 1 through 9, then simply substitute -16 for 1, -12 for 2, etc. All rows, columns, and the diagonal will add to 0.