condition	mean	min	max
4 h after light	5.313985	5.14598	5.48199
8 h after light	10.27071	9.78512	10.7563
12 h after light	13.21125	11.9111	14.5114
4 h after dark	17.3084	14.9034	19.3618
8 h after dark	12.0844	11.5846	12.5143
12 h after dark	8.150203333333334	7.80724	8.80865