condition	mean	min	max
4 h after light	5.826763333333334	5.575830000000001	5.96206
8 h after light	5.57744	5.47653	5.72283
12 h after light	6.537400000000001	6.42941	6.654210000000001
4 h after dark	6.842343333333334	6.776	6.974710000000001
8 h after dark	7.24768	6.809589999999999	7.469410000000001
12 h after dark	7.17943	6.8314699999999995	7.51363