condition	mean	min	max
4 h after light	3.60901	3.33767	3.88035
8 h after light	3.356135	3.27407	3.4382
12 h after light	5.064845	5.01775	5.11194
4 h after dark	7.4305	6.7688	8.0922
8 h after dark	5.812305	5.60766	6.01695
12 h after dark	5.40318	5.11419	5.69217