x y .066 4.6 .088 11.6 .12 9.5 .05 6.3 .162 13.8 .186 15.4 .057 2.5 .1 11.8 .112 8 .055 7 .154 20.6 .074 16.6 .111 9.2 .14 17.9 .071 2.8 .11 13