condition	mean	min	max
4 h after light	18.779679	16.918004	20.641354
8 h after light	17.545977	17.545977	17.545977
12 h after light	20.998463	19.590999	22.405927
4 h after dark	15.738559500000001	13.931142	17.545977
8 h after dark	15.468664	15.346842	15.590486
12 h after dark	28.267088	28.267088	28.267088