condition mean min max 0 h after light 0.2381305 0.229355 0.246906 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.1243885 0.0 0.248777 12 h after dark 0.117727 0.0 0.235454