data := [[8, 12.30142085], [6.602440515, 15.14353054], [3.182997471, 14.0284525\
8], [1.229066411, 15.48439727], [6.393930237, 15.79208482], [-2.364448564, 13.3\
6131498], [8.937731960, 16.65911475], [4.575388504, 15.67647085], [-9.815860340
, 11.41763502], [-.698167593, 13.16851969], [-6.819538952, 13.00535067], [7.305\
268339, 16.38671973], [-8.261433080, 12.61758401], [-3.662388846, 13.37182385],
[5.967002761, 15.46035071], [7.286538705, 16.95234335], [-.287982390, 14.219321\
80], [-3.746003701, 14.31120812], [.221406837, 14.89618097], [3.874223743, 15.6\
7782414], [-1.384240012, 14.07769901], [7.494639397, 16.99943823], [-4.82350602\
1, 12.26203792], [5.198605807, 15.88211472], [-5.929865885, 13.69650893], [-7.9\
97956036, 13.01858534]];