condition	mean	min	max
0 h after light	6.210435	6.11155	6.30932
4 h after light	5.726935	5.67807	5.7758
8 h after light	11.02695	10.0095	12.0444
4 h after dark	15.5897	14.529	16.6504
8 h after dark	9.504010000000001	9.11444	9.89358
12 h after dark	6.486015	6.40565	6.56638