"subject"	"group"	"success"	"failure"	"prop.success"
"1"	"S1"	"group1"	4	7	0.363636363636364
"3"	"S2"	"group1"	4	5	0.444444444444444
"4"	"S3"	"group1"	4	3	0.571428571428571
"5"	"S4"	"group1"	4	3	0.571428571428571
"8"	"S5"	"group1"	7	5	0.583333333333333
"10"	"S6"	"group1"	12	1	0.923076923076923
"12"	"S7"	"group1"	1	9	0.1
"15"	"S8"	"group1"	0	8	0
"18"	"S9"	"group1"	1	9	0.1
"22"	"S10"	"group1"	1	9	0.1
"2"	"S11"	"group2"	4	6	0.4
"6"	"S12"	"group2"	5	1	0.833333333333333
"9"	"S13"	"group2"	5	3	0.625
"11"	"S14"	"group2"	5	5	0.5
"13"	"S15"	"group2"	2	9	0.181818181818182
"14"	"S16"	"group2"	0	8	0
"16"	"S17"	"group2"	1	11	0.0833333333333333
"17"	"S18"	"group2"	1	9	0.1
"19"	"S19"	"group2"	1	7	0.125
"20"	"S20"	"group2"	0	8	0
"21"	"S21"	"group2"	1	8	0.111111111111111