condition mean min max 4 h after light 0.975653 0.969176 0.98213 8 h after light 0.9096355 0.850269 0.969002 12 h after light 0.8311455000000001 0.7849 0.877391 4 h after dark 1.0328300000000001 1.03126 1.0344 8 h after dark 0.9563575 0.920547 0.992168 12 h after dark 1.1206040000000002 0.903788 1.33742