condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.08113305 0.0441111 0.118155 12 h after light 0.0983973 0.0538736 0.142921 4 h after dark 0.0470881 0.0 0.0941762 8 h after dark 0.0707915 0.0 0.141583 12 h after dark 0.19072299999999998 0.185851 0.195595