rownames,wattsPerKg,o2,id 1,2.72,41.09,1 2,3.2,46.61,1 3,3.66,52.22,1 4,4.1,59.51,1 5,4.56,67.32,1 6,5.03,69.05,1 7,2.91,33.75,2 8,3.48,41.22,2 9,4.07,48.86,2 10,4.65,53.91,2 11,5.23,59.86,2 12,5.86,66.12,2 13,6.43,69.48,2 14,3.18,41.83,3 21,3.65,45.79,3 31,4.12,50.62,3 41,4.56,55.48,3 51,5.02,59.96,3 61,5.47,67.04,3 71,5.93,68.17,3 15,2.59,37.27,4 22,3.1,45.18,4 32,3.62,51.08,4 42,4.14,57.4,4 52,4.67,64.15,4 62,4.81,67.63,4