condition mean min max 4 h after light 3.3431073333333337 3.199887 3.4983980000000003 8 h after light 2.7883970000000002 2.702552 2.8622900000000002 12 h after light 1.561855 1.3698780000000002 1.768432 16 h after light 3.394399 2.907596 4.122787000000001 4 h after dark 2.7747303333333333 2.58396 3.132589 8 h after dark 1.7407506666666668 1.712738 1.779353