condition mean min max 4 h after light 0.803231 0.72436 0.882102 8 h after light 0.9840054999999999 0.911831 1.05618 12 h after light 2.0367949999999997 1.87642 2.19717 4 h after dark 3.56058 3.12245 3.99871 8 h after dark 2.23789 2.22143 2.25435 12 h after dark 1.3182450000000001 1.19406 1.44243