data := [[.487570475, -18.66874508], [7.418851739, -24.25800003], [-3.80623695\
1, -13.69525447], [8.574543080, -25.36956062], [10.28328082, -26.13985994], [-\
.832224110, -15.59448932], [6.349779150, -24.71203063], [3.666566142, -18.3213\
1029], [-.3853230846, -16.26523965], [-2.840433363, -14.39342443], [-8.4667614\
28, -9.993921859], [7.972465962, -25.88505655], [1.618242370, -18.52237411], [
6.070292083, -22.77791510], [1.007477883, -17.86047952], [-2.915361680, -12.58\
211482], [-5.642662093, -8.746014244], [6.763430056, -23.49548395], [1.2909639\
34, -19.46020324], [-1.337778061, -16.74806454], [1.456110877, -18.02921258],
[-7.564226601, -10.29165187], [-9.224711131, -7.061416903], [6.027057904, -22.\
85774812], [8.870126121, -26.78983297]];