condition mean min max 0 h after light 18.97285 17.7479 20.1978 2 h after light 11.0115 10.9216 11.1014 4 h after light 7.46338 7.45587 7.47089 8 h after light 8.364005 7.82542 8.90259 12 h after light 11.766829999999999 9.93116 13.6025 2 h after dark 13.58635 13.3384 13.8343 4 h after dark 14.120550000000001 12.6452 15.5959 8 h after dark 23.482100000000003 21.3882 25.576 12 h after dark 17.24995 17.1788 17.3211