condition	mean	min	max
4 h after light	3.8804266666666667	3.8288699999999998	3.9464900000000003
8 h after light	3.9700933333333333	3.90864	4.028919999999999
12 h after light	3.8766566666666664	3.79345	3.92291
4 h after dark	3.9029233333333333	3.81541	3.9882
8 h after dark	3.84951	3.83511	3.86984
12 h after dark	3.8372500000000005	3.7507300000000003	3.9080800000000004