condition	mean	min	max
0 h after light	4.793055	3.96393	5.62218
4 h after light	4.01544	3.75045	4.28043
8 h after light	3.45267	3.17039	3.73495
4 h after dark	4.505105	4.17116	4.83905
8 h after dark	3.889925	3.87587	3.90398
12 h after dark	4.05071	3.67585	4.42557