condition mean min max 3 h after light 1.5979966666666665 1.49395 1.79402 6 h after light 1.0643449999999999 0.759 1.46464 9 h after light 1.4036733333333333 1.17388 1.61729 12 h after light 2.27294 1.37339 4.14236 3 h after dark 2.9090100000000003 2.52518 3.13486 6 h after dark 4.017053333333333 3.20971 4.7347 9 h after dark 3.5465633333333333 3.27784 3.86482 12 h after dark 3.1858500000000003 2.86485 3.50685