condition mean min max 4 h after light 11.984994499999999 11.526396 12.443593 8 h after light 10.195181 9.556244 10.834118 12 h after light 10.97569 9.850564 12.100816 4 h after dark 11.534167 9.27474 13.793594 8 h after dark 11.354851499999999 11.315849 11.393854 12 h after dark 9.538025 9.538025 9.538025