condition	mean	min	max
0 h after light	8.396035	7.16429	9.62778
4 h after light	8.35473	7.92304	8.78642
8 h after light	6.0886700000000005	5.78089	6.39645
4 h after dark	7.997254999999999	7.29367	8.70084
8 h after dark	7.823964999999999	6.88384	8.76409
12 h after dark	7.38022	7.16952	7.59092