condition mean min max 4 h after light 3.60799 2.96347 4.25251 8 h after light 2.563865 2.40695 2.72078 12 h after light 3.2417049999999996 2.85755 3.62586 4 h after dark 6.845416666666667 5.51484 8.93765 8 h after dark 5.076483333333333 4.81136 5.49166 12 h after dark 5.47372 4.95005 5.95225