condition mean min max 0 h after light 1.88747 1.74292 2.03202 4 h after light 4.770899999999999 4.45902 5.08278 8 h after light 7.167395 7.05088 7.28391 4 h after dark 3.61465 3.37781 3.85149 8 h after dark 3.530105 3.32954 3.73067 12 h after dark 2.2391199999999998 2.0857 2.39254