condition mean min max 0 h after light 6.500425 6.37795 6.6229 2 h after light 4.8771 4.65072 5.10348 4 h after light 5.142530000000001 4.78418 5.50088 8 h after light 5.136604999999999 5.1057 5.16751 12 h after light 8.746614999999998 8.56806 8.92517 2 h after dark 8.88928 8.86029 8.91827 4 h after dark 7.91629 7.5686 8.26398 8 h after dark 10.207125 8.78915 11.6251 12 h after dark 6.549110000000001 6.17302 6.9252