condition	mean	min	max
4 h after light	7.768805	7.646142	7.891468
8 h after light	7.303895499999999	6.828226	7.779565
12 h after light	7.500495000000001	6.999821	8.001169
4 h after dark	7.7190840000000005	7.658603	7.779565
8 h after dark	8.137431500000002	8.024686	8.250177
12 h after dark	7.741881	7.741881	7.741881