condition	mean	min	max
4 h after light	8.486045	7.82202	9.15007
8 h after light	5.234595	5.22671	5.24248
12 h after light	3.635945	1.30846	5.96343
4 h after dark	2.099395	1.70817	2.49062
8 h after dark	2.076435	1.98491	2.16796
12 h after dark	3.971335	3.63592	4.30675