condition	mean	min	max
4 h after light	7.053459999999999	7.03397	7.071439999999999
8 h after light	6.981333333333334	6.823580000000001	7.27855
12 h after light	7.05765	6.916689999999999	7.198010000000001
4 h after dark	7.230993333333333	6.93986	7.4219
8 h after dark	7.41717	7.26743	7.52066
12 h after dark	7.615356666666666	7.589989999999999	7.66308