condition	mean	min	max
0 h after light	6.69818	6.50789	6.88847
4 h after light	6.08883	5.7946	6.38306
8 h after light	6.9807500000000005	5.88126	8.08024
4 h after dark	7.11082	6.68581	7.53583
8 h after dark	6.960525	6.54881	7.37224
12 h after dark	5.935594999999999	5.62318	6.24801