condition	mean	min	max
0 h after light	15.61675	11.414	19.8195
4 h after light	7.248555	7.00222	7.49489
8 h after light	7.1133999999999995	6.19666	8.03014
4 h after dark	11.23265	10.9609	11.5044
8 h after dark	11.53221	9.82462	13.2398
12 h after dark	11.927085	9.41587	14.4383