condition mean min max 4 h after light 2.943363 2.890791 3.0107169999999996 8 h after light 2.2252996666666665 1.4832049999999999 2.605591 12 h after light 1.4847213333333333 1.3861780000000001 1.617408 16 h after light 2.8997866666666665 2.410882 3.4400169999999997 4 h after dark 2.3855563333333336 2.17497 2.7729060000000003 8 h after dark 1.55171 1.496502 1.62134