condition mean min max 3 h after light 0.16882666666666665 0.0 0.283647 6 h after light 0.8416543333333334 0.0 1.96245 9 h after light 1.942241 0.905193 3.59583 12 h after light 2.77476 2.28766 3.55662 3 h after dark 3.23697 2.59774 4.3596 6 h after dark 3.0961866666666666 2.62662 3.88668 9 h after dark 2.64055 2.08971 2.96628 12 h after dark 1.0737425 0.908945 1.23854