condition	mean	min	max
0 h after light	5.44512	5.27829	5.61195
4 h after light	6.405685	6.06327	6.7481
8 h after light	5.911685	5.69007	6.1333
4 h after dark	6.70083	6.62829	6.77337
8 h after dark	6.96704	6.60229	7.33179
12 h after dark	5.970765	5.5447	6.39683