data := [[3.686745877, 1.557362558], [5.487890741, 2.479447208], [-8.865125222
, -8.141794081], [-1.762942690, -1.548630511], [-.760464958, -1.360634936], [2\
.465130959, .2728723724], [-4.847445011, -4.435991417], [-5.297882280, -4.0209\
46133], [-8.192673066, -8.800733191], [-10.71479028, -8.971030303], [-3.564878\
020, -5.613908492], [.835913393, -2.616486655], [-3.134875846, -2.679050431],
[-5.490852452, -5.047179895], [-1.969410144, -1.632697072], [8.435042661, 6.17\
5658603], [3.278212782, -.6057510846], [-7.688886684, -8.144133515], [7.399926\
770, 5.315955660], [-2.777091196, -2.695091196], [-.917843879, -1.391398135],
[-7.093388972, -6.051386871], [4.465099088, 3.459718933], [9.477260819, 4.1846\
30346], [-9.794445323, -7.907648202]];