condition mean min max 0 h after light 2.7912 2.67738 2.90502 4 h after light 3.968965 2.7824 5.15553 8 h after light 5.8999749999999995 4.67226 7.12769 4 h after dark 6.287855 5.61416 6.96155 8 h after dark 6.405765 6.11661 6.69492 12 h after dark 2.9250100000000003 2.78507 3.06495