subj	AirImmed	Air4min	OxImmed	Ox4mn
1	6.8	9.3	8.5	9.3
2	8.0	8.1	7.3	8.4
3	9.6	8.3	12.3	11.1
4	6.7	5.3	6.3	7.0
5	10.9	11.4	7.6	7.0
6	5.9	5.0	5.9	5.7
7	6.5	8.8	9.0	8.5
8	6.2	6.6	5.6	6.0
9	7.9	8.9	8.2	9.7
10	8.0	10.8	8.1	10.5
11	7.7	7.9	7.5	9.2
12	6.9	9.0	7.5	10.2