condition	mean	min	max
4 h after light	1.929535	1.91768	1.94139
8 h after light	1.896185	1.88021	1.91216
12 h after light	2.640865	2.36029	2.92144
4 h after dark	4.029336666666667	3.30585	4.6584
8 h after dark	2.78717	1.36196	3.99737
12 h after dark	1.79581	1.73305	1.83016