condition	mean	min	max
4 h after light	4.27741	4.16313	4.39169
8 h after light	5.01103	4.3206	5.70146
12 h after light	6.10414	5.14665	7.06163
4 h after dark	8.12797	7.9472	8.30874
8 h after dark	7.29216	7.23981	7.34451
12 h after dark	6.30183	6.12369	6.47997