condition mean min max 4 h after light 3.622183 3.5326239999999998 3.7551940000000004 8 h after light 2.566987 1.6011959999999998 3.067705 12 h after light 3.1573636666666665 1.8026900000000001 5.169364 16 h after light 3.7356336666666667 3.473639 4.170755000000001 4 h after dark 3.126460333333333 2.741535 3.42549 8 h after dark 2.971205 1.878107 5.000102