condition mean min max 0 h after light 9.783439999999999 8.91378 10.6531 2 h after light 9.285260000000001 9.15664 9.41388 4 h after light 8.568154999999999 7.84899 9.28732 8 h after light 9.729305 7.72331 11.7353 12 h after light 17.23065 16.0084 18.4529 2 h after dark 16.6276 13.1905 20.0647 4 h after dark 13.48385 10.1646 16.8031 8 h after dark 14.48715 13.7655 15.2088 12 h after dark 10.279125 8.30545 12.2528