condition	mean	min	max
0 h after light	7.69482	7.08955	8.30009
4 h after light	15.9286	13.6965	18.1607
8 h after light	15.58595	14.2299	16.942
4 h after dark	5.290745	3.68974	6.89175
8 h after dark	8.51817	6.88384	10.1525
12 h after dark	7.249345	7.16952	7.32917