condition	mean	min	max
0 h after light	3.062145	3.01302	3.11127
4 h after light	2.6448	2.45604	2.83356
8 h after light	2.17863	1.6515	2.70576
4 h after dark	2.82817	2.82259	2.83375
8 h after dark	3.323315	3.22265	3.42398
12 h after dark	3.24538	2.77751	3.71325