condition	mean	min	max
0 h after light	13.20365	12.2535	14.1538
4 h after light	5.85936	5.4304	6.28832
8 h after light	12.19355	11.6692	12.7179
4 h after dark	13.80235	12.2705	15.3342
8 h after dark	6.565385	6.16089	6.96988
12 h after dark	9.71323	9.21796	10.2085