condition	mean	min	max
0 h after light	8.024275	7.64314	8.40541
4 h after light	7.80823	7.13981	8.47665
8 h after light	6.8408999999999995	6.35418	7.32762
4 h after dark	8.56909	8.21285	8.92533
8 h after dark	9.40037	9.33961	9.46113
12 h after dark	7.896105	7.79147	8.00074