Subject	Placebo	Caffeine
1.000000000e+000	1.050000000e+002	9.600000000e+001
2.000000000e+000	1.190000000e+002	9.900000000e+001
3.000000000e+000	9.200000000e+001	8.900000000e+001
4.000000000e+000	9.700000000e+001	9.500000000e+001
5.000000000e+000	9.600000000e+001	8.800000000e+001
6.000000000e+000	1.010000000e+002	9.500000000e+001
7.000000000e+000	9.400000000e+001	8.800000000e+001
8.000000000e+000	9.500000000e+001	9.300000000e+001
9.000000000e+000	9.800000000e+001	8.800000000e+001