condition	mean	min	max
4 h after light	4.20802	3.75653	4.65951
8 h after light	5.864815	5.72562	6.00401
12 h after light	6.819305	6.39608	7.24253
4 h after dark	8.24865	7.64828	8.84902
8 h after dark	6.6432	6.63069	6.65571
12 h after dark	5.7381899999999995	5.67748	5.7989