density	cones
1	0.1
1.5	0.3
1.4	0.4
1.5	0.5
0.7	0.5
1.2	0.8
0.9	1.2
1	1.4
1.2	1.8
1.4	2
1.5	2.1
0.8	2.2
1.3	2.3
2.3	2.5
2	2.9
1	3.1
1.4	3.3
0.9	3.6
1.3	3.8
1.9	4.2
1.8	5.1
1.9	5.2
3.4	5.3