condition	mean	min	max
4 h after light	21.572659	19.534891	23.610427
8 h after light	22.649532999999998	20.286354	25.012712
12 h after light	17.868076000000002	15.980245	19.755907
4 h after dark	18.314131	14.269263	22.358999
8 h after dark	17.934222	16.614548	19.253896
12 h after dark	27.012415	27.012415	27.012415