"union"	"left"	"size"	"concen"
82.4	111.84	8.27664912542186	1.55
80	73.17	6.90475076996184	1.71
74.3	17.25	4.39444915467244	2.06
73.3	59.33	7.61775957660851	1.56
71.9	43.25	8.11611843160937	1.52
69.8	90.24	7.70751219460034	1.52
68.1	0	6.78671695060508	1.75
65.6	48.67	7.81156848934518	1.53
59.4	60	6.95654544315157	1.64
58.9	83.08	7.41276401742656	1.58
51.4	33.74	8.60079877527103	1.37
50.6	0	9.66896702819858	0.86
48	43.67	10.156461713809	1.13
39.6	35.33	10.043379921188	0.92
37.7	31.5	8.41383067842108	1.25
35.4	11.87	7.80791662892641	1.68
31.2	0	9.26065318584977	1.35
31	1.92	10.5948832000573	1.11
28.2	8.67	9.8440559687667	0.95
24.5	0	11.4392681604813	1