condition	mean	min	max
4 h after light	8.105146000000001	7.615107	8.595185
8 h after light	7.844858	7.490009	8.199707
12 h after light	8.18664	7.433542	8.939738
4 h after dark	7.6465715	7.278784	8.014359
8 h after dark	8.46565	7.037566	9.893734
12 h after dark	7.646911	7.646911	7.646911