condition	mean	min	max
4 h after light	1001.77	929.53	1074.01
8 h after light	773.5615	758.923	788.2
12 h after light	773.762	766.482	781.042
4 h after dark	931.585	854.26	1008.91
8 h after dark	892.6975	888.898	896.497
12 h after dark	1060.43	1038.67	1082.19