condition mean min max 4 h after light 12.254737 12.097022 12.412452 8 h after light 11.756814 10.779403 12.734225 12 h after light 11.913545500000001 11.730069 12.097022 4 h after dark 12.653836 12.097022 13.21065 8 h after dark 14.450503999999999 12.523151 16.377857 12 h after dark 11.43029 11.43029 11.43029