condition mean min max 4 h after light 7.78271 7.10521 8.46021 8 h after light 5.96225 5.75664 6.16786 12 h after light 6.427845 6.3276 6.52809 4 h after dark 2.4624989999999998 0.623398 4.3016 8 h after dark 1.0724005 0.923851 1.22095 12 h after dark 4.26013 3.06309 5.45717