condition mean min max 4 h after light 11.078172 10.161021 11.995323 8 h after light 10.05045 9.939879 10.161021 12 h after light 11.109207999999999 10.161021 12.057395 4 h after dark 9.853359000000001 9.565453 10.141265 8 h after dark 10.255365000000001 9.314927 11.195803 12 h after dark 10.498339 10.498339 10.498339