condition mean min max 0 h after light 0.03826775 0.0 0.0765355 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 0.0415083 0.0 0.0830166 12 h after dark 0.0 0.0 0.0