condition	mean	min	max
4 h after light	8.00824	7.12862	8.88786
8 h after light	9.806065	9.10173	10.5104
12 h after light	11.72505	11.5634	11.8867
4 h after dark	14.7848	14.7508	14.8188
8 h after dark	14.58545	14.3748	14.7961
12 h after dark	13.51765	12.9539	14.0814