"extra"	"group"	"ID"
0.7	"1"	"1"
-1.6	"1"	"2"
-0.2	"1"	"3"
-1.2	"1"	"4"
-0.1	"1"	"5"
3.4	"1"	"6"
3.7	"1"	"7"
0.8	"1"	"8"
0	"1"	"9"
2	"1"	"10"
1.9	"2"	"1"
0.8	"2"	"2"
1.1	"2"	"3"
0.1	"2"	"4"
-0.1	"2"	"5"
4.4	"2"	"6"
5.5	"2"	"7"
1.6	"2"	"8"
4.6	"2"	"9"
3.4	"2"	"10"