condition	mean	min	max
4 h after light	23.01725	22.4598	23.5747
8 h after light	18.48545	17.7853	19.1856
12 h after light	16.254849999999998	15.8051	16.7046
4 h after dark	14.8688	13.1898	16.5478
8 h after dark	19.04245	17.6867	20.3982
12 h after dark	19.78845	18.5877	20.9892