condition mean min max 4 h after light 4.261807 2.903203 6.8526940000000005 8 h after light 2.8027946666666668 2.17481 3.7946050000000002 12 h after light 2.9109416666666665 1.6381059999999998 4.178662 16 h after light 4.5460606666666665 2.575653 7.5717419999999995 4 h after dark 6.347634 4.687078 8.534085000000001 8 h after dark 2.623543 1.51294 3.712224