data := [[5.153540754, -19.86163299], [8.819554337, -19.71170432], [-1.6634689\
01, -13.39485093], [-5.287952954, -7.769965516], [-8.652246061, -4.443313402],
[.488194610, -14.18169248], [4.636556032, -17.27671725], [-5.476158115, -10.39\
760149], [-.702827993, -11.26145062], [-6.530051471, -7.938500316], [-.9393766\
36, -10.98794887], [2.189670198, -12.78336105], [-2.458042295, -11.83701331],
[8.647016823, -22.16303829], [7.158683302, -19.63543110], [2.986920240, -16.73\
134576], [-10.32775787, -5.349134891], [-1.436278499, -11.82090619], [7.048021\
548, -21.11088254], [2.809037240, -14.95655091], [-4.147564512, -8.112564432],
[9.566214818, -23.95998040], [-7.475552583, -5.675044604], [-3.037234291, -12.\
82383622], [-5.340679031, -9.947704705]];