condition mean min max 4 h after light 23.21465 20.4112 26.0181 8 h after light 12.58645 12.2725 12.9004 12 h after light 11.95275 10.9154 12.9901 4 h after dark 8.56245 7.72317 9.40173 8 h after dark 6.59305 6.42356 6.76254 12 h after dark 11.188099999999999 10.8737 11.5025