data := [[1.691132446, 11.60915376], [-1.403519994, 7.149541987], [7.063556640
, 17.04115939], [1.795343831, 10.02032556], [5.540691341, 16.33386345], [7.964\
093387, 18.09946278], [10.30136908, 21.87040203], [-.180034318, 7.558190045],
[-1.973183662, 4.169787730], [-.361460178, 7.543452805], [-4.452976186, 2.3197\
34060], [-6.358725397, -3.588607668], [4.845804163, 14.05867831], [4.316783726
, 12.95820368], [-8.794813189, -5.406610424], [-1.030834412, 3.732530259], [.2\
38792423, 9.242156034], [-3.672904480, 1.373402763], [-1.490652206, 2.73395682\
8], [-.575468545, 6.802436991], [5.232463733, 15.96399136], [-8.871014724, -4.\
990830337], [-7.742850652, -3.181169444], [6.944861769, 18.94643283], [-.65015\
5748, 7.802395040]];