condition	mean	min	max
4 h after light	3.404485	3.18448	3.62449
8 h after light	3.206795	3.15057	3.26302
12 h after light	4.698085	4.35589	5.04028
4 h after dark	8.32639	7.69553	8.95725
8 h after dark	6.00106	5.88615	6.11597
12 h after dark	4.179055	3.91655	4.44156