condition	mean	min	max
0 h after light	4.088645	3.96404	4.21325
4 h after light	4.658425	3.64501	5.67184
8 h after light	7.67268	7.02347	8.32189
4 h after dark	7.27671	5.84705	8.70637
8 h after dark	5.5113	5.04127	5.98133
12 h after dark	3.438545	3.11675	3.76034