condition	mean	min	max
4 h after light	8.562566	8.488832	8.6363
8 h after light	8.792730500000001	8.61538	8.970081
12 h after light	7.8863	7.638133	8.134467
4 h after dark	8.3807405	8.146101	8.61538
8 h after dark	8.7335105	8.398962	9.068059
12 h after dark	9.658574	9.658574	9.658574