condition mean min max 4 h after light 11.751476499999999 11.224684 12.278269 8 h after light 10.2517195 10.124838 10.378601 12 h after light 10.9183965 10.028119 11.808674 4 h after dark 10.436299 9.798127 11.074471 8 h after dark 10.893936499999999 10.820065 10.967808 12 h after dark 10.720089 10.720089 10.720089