condition	mean	min	max
4 h after light	3.977475	3.48054	4.47441
8 h after light	5.04575	4.85516	5.23634
12 h after light	5.10638	5.02873	5.18403
4 h after dark	7.601545	7.43956	7.76353
8 h after dark	5.83337	5.73403	5.93271
12 h after dark	6.32244	5.79834	6.84654