condition mean min max 0 h after light 6.62834 6.11152 7.14516 2 h after light 12.558150000000001 12.5424 12.5739 4 h after light 7.88068 7.2146 8.54676 8 h after light 7.213865 7.12597 7.30176 12 h after light 13.57185 13.2663 13.8774 2 h after dark 18.3966 14.1965 22.5967 4 h after dark 12.224599999999999 10.4215 14.0277 8 h after dark 8.870035 7.98336 9.75671 12 h after dark 9.269925 8.48785 10.052