condition	mean	min	max
4 h after light	8.96913	8.8664	9.140880000000001
8 h after light	8.89396	8.6717	9.13451
12 h after light	8.924006666666667	8.84436	9.06287
4 h after dark	8.902320000000001	8.690710000000001	9.16525
8 h after dark	9.051943333333334	8.90678	9.27078
12 h after dark	9.094666666666667	8.99478	9.19623