condition	mean	min	max
4 h after light	7.0789635	6.595244	7.562683
8 h after light	6.68098	6.321413	7.040547
12 h after light	7.780327	7.502826	8.057828
4 h after dark	7.358618	6.755762	7.961474
8 h after dark	6.6686345	6.181274	7.155995
12 h after dark	6.927222	6.927222	6.927222