condition mean min max 4 h after light 20.609115000000003 18.128643 23.089587 8 h after light 13.249942 12.189217 14.310667 12 h after light 12.485179 11.692444 13.277914 4 h after dark 10.1825685 8.250177 12.11496 8 h after dark 12.214707 11.1515 13.277914 12 h after dark 19.654762 19.654762 19.654762