condition mean min max 4 h after light 3.84283 2.54158 5.14408 8 h after light 3.192275 3.0026 3.38195 12 h after light 4.440939999999999 4.30887 4.57301 4 h after dark 7.14826 6.55448 7.65864 8 h after dark 8.07535 7.05557 8.66944 12 h after dark 4.195656666666666 3.47531 4.77442