swimmer.number wet.suit.velocity swim.suit.velocity velocity.diff 1 1.57 1.49 0.08000000000000007 2 1.47 1.37 0.09999999999999987 3 1.42 1.35 0.06999999999999984 4 1.35 1.27 0.08000000000000007 5 1.22 1.12 0.09999999999999987 6 1.75 1.64 0.1100000000000001 7 1.64 1.59 0.04999999999999982 8 1.57 1.52 0.050000000000000044 9 1.56 1.5 0.06000000000000005 10 1.53 1.45 0.08000000000000007 11 1.49 1.44 0.050000000000000044 12 1.51 1.41 0.10000000000000009