data := [[8, 17.69719231], [1.237051642, 19.44552466], [-4.075589651, 17.62598\
368], [-8.848128458, 16.42573004], [-6.465515415, 16.23646686], [-7.256062005,
16.11452773], [-5.323418487, 17.18292436], [-3.662617045, 17.50592182], [-7.80\
0155915, 15.57655066], [-.9517960102, 18.10513680], [9.741325731, 22.11770755]
, [8.304201155, 21.42373312], [-.95433400e-2, 18.76380108], [5.933554461, 20.2\
0263006], [-2.046704916, 17.96734386], [-5.885537134, 15.90157232], [-5.920700\
999, 16.06700973], [2.074998755, 20.54137728], [-7.070180269, 15.50064574], [-\
.662316249, 17.73869548], [8.934049219, 20.90370131], [4.472627878, 21.2075081\
0], [4.105640026, 21.59681538], [-2.493269242, 17.44168456], [-7.478905573, 16\
.34584472], [-6.956651609, 16.93395635]];