condition mean min max 2 h after light 1.045898 0.562609 1.51387 6 h after light 1.5242499999999999 1.17123 1.82502 10 h after light 2.7518616666666667 1.33456 3.70387 14 h after light 2.9130416666666665 1.27013 6.40372 18 h after light 1.3442703333333335 0.598998 2.92105 2 h after dark 0.9532125 0.0 1.63776