condition mean min max 0 h after light 8.482645 7.62218 9.34311 2 h after light 3.520045 2.95068 4.08941 4 h after light 3.16147 2.64478 3.67816 8 h after light 3.91604 3.52949 4.30259 12 h after light 5.14555 5.081 5.2101 2 h after dark 6.512935000000001 6.26667 6.7592 4 h after dark 6.920925 6.41827 7.42358 8 h after dark 9.96813 9.88826 10.048 12 h after dark 8.952335 8.25628 9.64839