condition	mean	min	max
4 h after light	16.42085	14.8001	18.0416
8 h after light	10.87505	10.2595	11.4906
12 h after light	14.483899999999998	12.8912	16.0766
4 h after dark	20.8653	20.5528	21.1778
8 h after dark	19.43385	19.2813	19.5864
12 h after dark	19.636699999999998	18.7721	20.5013