condition mean min max 4 h after light 3.17647 0.0 6.21203 8 h after light 2.70927 1.89606 3.87822 12 h after light 5.13166 2.96481 8.85284 4 h after dark 5.5888 4.26671 6.51225 8 h after dark 6.2792 5.22147 7.48823 12 h after dark 4.272283333333333 3.56176 5.17966