condition	mean	min	max
4 h after light	4.053326666666667	3.99874	4.09564
8 h after light	4.10244	4.04066	4.15015
12 h after light	4.109273333333333	4.0056	4.2624699999999995
4 h after dark	4.0570699999999995	3.90466	4.19463
8 h after dark	4.104373333333333	3.98254	4.31193
12 h after dark	4.139056666666667	4.1208599999999995	4.16035