condition mean min max 4 h after light 9.3862605 8.573861 10.19866 8 h after light 8.3084915 8.208201 8.408782 12 h after light 8.938280500000001 8.320921 9.55564 4 h after dark 7.1361930000000005 7.098122 7.174264 8 h after dark 8.2095555 7.84525 8.573861 12 h after dark 9.838414 9.838414 9.838414