condition mean min max 0 h after light 11.843150000000001 11.2177 12.4686 4 h after light 10.7164 10.0582 11.3746 8 h after light 6.549055 6.5247 6.57341 4 h after dark 11.316175 9.91805 12.7143 8 h after dark 16.195050000000002 14.3436 18.0465 12 h after dark 11.3032 10.3251 12.2813