condition	mean	min	max
4 h after light	8.582413333333333	8.45979	8.68869
8 h after light	8.656519999999999	8.483989999999999	8.754769999999999
12 h after light	8.704233333333333	8.48065	8.84029
4 h after dark	8.902493333333334	8.83446	8.96006
8 h after dark	8.793036666666666	8.73475	8.87248
12 h after dark	8.87186	8.79612	8.997110000000001