condition	mean	min	max
0 h after light	4.291525	3.92189	4.66116
4 h after light	19.653	15.1555	24.1505
8 h after light	8.79534	7.63735	9.95333
4 h after dark	13.9709	9.6155	18.3263
8 h after dark	22.68675	21.664	23.7095
12 h after dark	5.70077	3.40576	7.99578