condition	mean	min	max
4 h after light	17.38015	15.9458	18.8145
8 h after light	11.30798	9.53766	13.0783
12 h after light	11.23672	8.85644	13.617
4 h after dark	14.798266666666667	13.7367	15.5875
8 h after dark	17.2533	16.8334	17.7529
12 h after dark	19.199433333333335	18.3743	20.0782