condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 3 h after dark 0.034144 0.0 0.102432 6 h after dark 0.04305433333333333 0.0 0.129163 9 h after dark 7.0264999999999995 0.0 21.0795 12 h after dark 0.04444066666666666 0.0 0.133322