condition	mean	min	max
0 h after light	4.53174	3.9613	5.10218
4 h after light	4.423995	3.90562	4.94237
8 h after light	2.99861	2.79796	3.19926
4 h after dark	6.922835	6.11364	7.73203
8 h after dark	6.19605	6.10212	6.28998
12 h after dark	4.1463	3.63304	4.65956