condition mean min max 4 h after light 0.931187 0.679854 1.18252 8 h after light 0.691014 0.573957 0.808071 12 h after light 0.6451685 0.557921 0.732416 4 h after dark 0.8685773333333333 0.496145 1.51882 8 h after dark 0.5399933333333333 0.175222 0.91982 12 h after dark 0.42383 0.0 0.721016