condition mean min max 4 h after light 10.183775 9.47655 10.891 8 h after light 8.706305 8.1815 9.23111 12 h after light 12.1755 11.1426 13.2084 4 h after dark 14.909 14.5538 15.2642 8 h after dark 11.54225 11.2077 11.8768 12 h after dark 11.367750000000001 11.0578 11.6777