condition mean min max 4 h after light 2.8669743333333333 2.789141 2.964929 8 h after light 2.0577216666666667 1.461682 2.430013 12 h after light 1.4192036666666668 1.3595780000000002 1.515762 16 h after light 3.5037570000000002 2.705478 4.478003 4 h after dark 2.341073 2.17967 2.639237 8 h after dark 1.494618 1.4580469999999999 1.5525959999999999