condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.1986145 0.0 0.397229 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.9793466666666667 0.0 2.93804 12 h after dark 9.637956666666668 0.0 27.2983