condition	mean	min	max
4 h after light	7.23287	6.38669	8.07905
8 h after light	6.8898600000000005	6.42731	7.35241
12 h after light	9.39103	8.99993	9.78213
4 h after dark	11.104600000000001	10.2498	11.9594
8 h after dark	10.88965	10.7783	11.001
12 h after dark	9.715489999999999	9.5841	9.84688