condition	mean	min	max
0 h after light	7.6107499999999995	6.10352	9.11798
4 h after light	5.95473	5.89172	6.01774
8 h after light	9.1894	9.00478	9.37402
4 h after dark	10.8535	10.8321	10.8749
8 h after dark	8.62786	7.8698	9.38592
12 h after dark	7.080825	6.63	7.53165