condition	mean	min	max
4 h after light	7.78664	7.64475	7.962619999999999
8 h after light	7.530876666666667	7.4634100000000005	7.634510000000001
12 h after light	7.50919	7.29995	7.74101
4 h after dark	7.6860566666666665	7.5731399999999995	7.7901
8 h after dark	7.99986	7.859719999999999	8.09648
12 h after dark	8.3526	8.246960000000001	8.430439999999999