condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 4 h after light 0.015856 0.0 0.031712 8 h after light 0.0 0.0 0.0 12 h after light 0.0156731 0.0 0.0313462 2 h after dark 0.01606575 0.0 0.0321315 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0169266 0.0 0.0338532 12 h after dark 0.03331535 0.0 0.0666307