condition	mean	min	max
0 h after light	6.844725	5.48164	8.20781
4 h after light	8.478259999999999	7.96491	8.99161
8 h after light	17.5785	17.2406	17.9164
4 h after dark	12.69025	11.5614	13.8191
8 h after dark	11.6593	11.2572	12.0614
12 h after dark	7.510695	5.98496	9.03643