condition	mean	min	max
4 h after light	20.067444000000002	15.682978	24.45191
8 h after light	16.526948	15.996883	17.057013
12 h after light	14.339579	11.769149	16.910009
4 h after dark	14.644513	12.433455	16.855571
8 h after dark	13.519498	12.115996	14.923
12 h after dark	14.361971	14.361971	14.361971