Engine	Age	Baseline	Reformulated
1	0	1.72	1.88
2	0	4.38	5.93
3	2	4.06	5.54
4	11	1.26	2.67
5	7	5.31	6.53
6	16	.57	.74
7	9	3.37	4.94
8	0	3.44	4.89
9	12	.74	.69
10	4	1.24	1.42