condition mean min max 2 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 10 h after light 0.508512 0.0 1.03793 2 h after dark 0.14755300000000002 0.0 0.442659 6 h after dark 0.261897 0.0 0.785691 10 h after dark 0.330947 0.0 0.992841