condition	mean	min	max
4 h after light	7.371691	6.796047	7.947335
8 h after light	6.7069375	6.608891	6.804984
12 h after light	7.0698485	6.804984	7.334713
4 h after dark	6.872418	6.095844	7.648992
8 h after dark	6.7639065	6.337848	7.189965
12 h after dark	6.524944	6.524944	6.524944