condition	mean	min	max
0 h after light	6.28402	6.26573	6.30231
4 h after light	3.29848	3.1135	3.48346
8 h after light	3.18216	2.91608	3.44824
4 h after dark	5.966425	5.69629	6.23656
8 h after dark	4.625065	4.03061	5.21952
12 h after dark	4.19788	4.1045	4.29126