condition	mean	min	max
4 h after light	4.518025	3.93197	5.10408
8 h after light	4.60411	4.18302	5.0252
12 h after light	3.858135	3.73125	3.98502
4 h after dark	6.84286	6.21661	7.46911
8 h after dark	5.69567	5.50712	5.88422
12 h after dark	5.78829	5.78725	5.78933