condition	mean	min	max
4 h after light	6.81582	6.04157	7.59007
8 h after light	3.073735	2.92632	3.22115
12 h after light	3.608295	3.60391	3.61268
4 h after dark	8.67358	7.46436	9.8828
8 h after dark	11.7926	11.7608	11.8244
12 h after dark	10.51605	10.3078	10.7243