condition mean min max 0 h after light 1.454805 1.2136 1.69601 4 h after light 1.33782 1.19441 1.48123 8 h after light 3.3974450000000003 2.9596 3.83529 4 h after dark 6.794925 6.68911 6.90074 8 h after dark 3.11416 2.8876 3.34072 12 h after dark 1.2019015 0.710073 1.69373