sample A1 A2 A3 A4 B1 B2 B3 B4 C1 C2 C3 C4 env1 8.54 8.56 8.55 8.56 8.66 8.54 8.59 8.59 8.22 8.27 8.34 8.44 env2 55.84 71.09 84.96 81.9 77.56 91.25 92.59 81.99 30.89 29.47 30.06 31.89 env3 90.46 114.65 108.79 131.63 74.37 74.86 63.54 46.43 31.44 30.69 29.2 35 env4 81.63 129.05 135.03 124.57 131.66 132.85 132.28 122.32 39.53 35.53 36.15 38.73 env5 1.87 2.13 2.23 2.16 2.09 1.99 2.07 2.11 1.63 1.57 1.59 1.67 env6 2.09 1.89 2.35 2.53 2.04 1.83 1.76 4.28 3.75 3.51 2.77 3.28 env7 1.38 1.14 1.28 1.16 2.56 3.04 2.45 2.46 2.94 1.74 2.54 3.9 env8 47.42 74.75 71.42 81.25 36.3 33 35.5 33.2 18.1 19.9 16.5 20.6 env9 489.94 831.34 808.74 842.64 429.8 420.2 404.5 385.3 116 112.4 110 123.2