condition	mean	min	max
2 h after light	19.90155	14.5002	25.0787
6 h after light	19.903766666666666	14.2037	29.1611
10 h after light	17.267466666666667	14.1184	23.5799
14 h after light	20.1597	14.4652	28.3524
18 h after light	18.64685	15.9124	20.7255
2 h after dark	17.1929	12.9572	20.7177