condition mean min max 4 h after light 7.578019 4.015535 10.47521 8 h after light 5.34316 2.686023 8.293628 12 h after light 3.8105556666666667 3.1206139999999998 4.437865 16 h after light 6.188711 5.307706 7.630669 4 h after dark 10.569100333333333 2.07274 22.0335 8 h after dark 3.7291746666666667 3.022248 4.320977