condition	mean	min	max
4 h after light	11.6061	11.3392	11.873
8 h after light	4.75599	4.58855	4.92343
12 h after light	6.5764949999999995	5.83813	7.31486
4 h after dark	19.348750000000003	17.8914	20.8061
8 h after dark	20.2003	20.1042	20.2964
12 h after dark	21.1685	20.6634	21.6736