condition	mean	min	max
4 h after light	15.2593	11.5025	17.4278
8 h after light	11.24382	2.71866	17.4562
12 h after light	13.42084	8.35532	17.0185
4 h after dark	16.162766666666666	11.6284	19.0323
8 h after dark	16.098300000000002	13.4794	19.0363
12 h after dark	18.861433333333334	17.3751	20.9469