condition mean min max 4 h after light 2.954135 2.94265 2.96562 8 h after light 2.02136 1.90695 2.13577 12 h after light 2.43813 2.06502 2.81124 4 h after dark 3.1781949999999997 2.74653 3.60986 8 h after dark 3.28095 3.02294 3.53896 12 h after dark 3.13733 2.99951 3.27515