condition mean min max 3 h after light 0.3284053333333333 0.20857 0.448941 6 h after light 0.4464996666666667 0.413624 0.481006 9 h after light 0.993509 0.81234 1.28683 12 h after light 2.4424775 1.7025 2.9565 3 h after dark 5.236876666666666 4.72439 5.68025 6 h after dark 7.64097 7.2289 7.96842 9 h after dark 5.5352033333333335 4.94394 6.69334 12 h after dark 1.5945999999999998 1.28103 1.90817