condition	mean	min	max
4 h after light	9.7476845	9.322898	10.172471
8 h after light	9.368255000000001	9.366543	9.369967
12 h after light	8.9202345	8.680201	9.160268
4 h after dark	8.797174	8.286498	9.30785
8 h after dark	8.5484415	7.973129	9.123754
12 h after dark	9.092755	9.092755	9.092755