condition mean min max 2 h after light 4.5068866666666665 4.28697 4.6598 6 h after light 4.84619 4.72965 4.91861 10 h after light 4.2534 4.20325 4.28199 2 h after dark 7.883253333333333 7.40961 8.74071 6 h after dark 8.183963333333333 7.96324 8.47626 10 h after dark 7.6377 7.45622 7.91629