condition	mean	min	max
0 h after light	6.46549	6.30404	6.62694
4 h after light	4.91207	4.85917	4.96497
8 h after light	5.077525	4.62801	5.52704
4 h after dark	7.18098	6.153	8.20896
8 h after dark	8.013075	7.88147	8.14468
12 h after dark	6.46406	6.33788	6.59024