condition	mean	min	max
4 h after light	8.72315	8.61767	8.89282
8 h after light	8.99638	8.92326	9.03595
12 h after light	8.78972	8.762830000000001	8.84097
4 h after dark	8.73678	8.67417	8.82874
8 h after dark	8.606043333333332	8.480089999999999	8.78877
12 h after dark	8.639493333333332	8.44218	8.87116