condition mean min max 4 h after light 2.9847726666666667 2.879052 3.161063 8 h after light 2.976805 1.552641 4.8624160000000005 12 h after light 10.532776666666667 10.07888 10.97076 16 h after light 2.9080323333333333 2.456428 3.453899 4 h after dark 3.177421 2.283068 4.52027 8 h after dark 1.633859 1.5213430000000001 1.820559