condition mean min max 0 h after light 1.1421965 0.988903 1.29549 4 h after light 1.253815 1.00762 1.50001 8 h after light 8.32974 7.59969 9.05979 4 h after dark 7.184995000000001 6.52545 7.84454 8 h after dark 4.326465 4.19546 4.45747 12 h after dark 1.350035 1.13951 1.56056