condition mean min max 4 h after light 11.003326666666666 10.93779 11.063089999999999 8 h after light 10.25286 10.165460000000001 10.419039999999999 12 h after light 7.718776666666667 7.55541 7.864960000000001 4 h after dark 10.727333333333334 10.58945 10.87785 8 h after dark 11.38687 11.23351 11.56532 12 h after dark 11.611446666666666 11.534 11.713289999999999