condition mean min max 0 h after light 5.75674 5.71235 5.80113 4 h after light 3.7689700000000004 3.70616 3.83178 8 h after light 5.548864999999999 5.39225 5.70548 4 h after dark 7.77708 7.24216 8.312 8 h after dark 7.94647 7.69402 8.19892 12 h after dark 5.234495 5.02185 5.44714