data := [[-9.061805859, 21.95327116], [-4.770815991, 14.28366159], [-.20912391\
67, 4.743016708], [-2.093292463, 11.99269941], [7.905690881, -8.456113035], [6\
.475502950, -7.422003921], [-.600198746, 6.967177340], [-7.280171107, 21.49810\
733], [-2.123008145, 6.603087227], [-8.554896108, 21.19834746], [8.140987741,
-8.893313645], [-8.937113211, 22.28697111], [4.451519462, -.308320326], [-7.48\
0161313, 18.42323755], [-8.332532102, 20.11615140], [-.51446910e-1, 6.82679597\
3], [-.386197534, 5.304276942], [-.817262581, 8.906372631], [-8.565212023, 19.\
31964812], [7.696726251, -12.37182146], [-5.032469874, 15.26944508], [-5.94871\
2230, 20.00864500], [9.539619536, -13.21093001], [.190855148, 1.302919746], [2\
.936268909, -.876209079]];