condition mean min max 4 h after light 9.50011 8.50572 10.4945 8 h after light 9.066175000000001 9.06362 9.06873 12 h after light 10.005735000000001 9.49857 10.5129 4 h after dark 11.561133333333334 11.3549 11.8979 8 h after dark 12.281166666666667 11.0127 13.7147 12 h after dark 9.143203333333332 8.66012 9.58377