condition mean min max 4 h after light 6.247835 6.11951 6.37616 8 h after light 2.739145 2.67051 2.80778 12 h after light 1.84852 1.61062 2.08642 4 h after dark 3.3746266666666664 2.24551 4.75716 8 h after dark 5.64666 5.11968 6.33435 12 h after dark 6.57909 5.83161 7.36291