condition mean min max 4 h after light 5.02093 4.94332 5.0603 8 h after light 4.952316666666667 4.87333 5.0580300000000005 12 h after light 5.152033333333334 4.9886800000000004 5.38175 4 h after dark 5.033786666666667 4.92967 5.1159300000000005 8 h after dark 5.1321200000000005 4.98795 5.32228 12 h after dark 5.072173333333334 4.97459 5.16971