condition	mean	min	max
4 h after light	4.125206666666667	4.08661	4.1871
8 h after light	4.129133333333333	4.04275	4.2224699999999995
12 h after light	4.2219999999999995	4.067819999999999	4.44613
4 h after dark	4.128656666666667	4.04252	4.2544900000000005
8 h after dark	4.17149	4.05971	4.25697
12 h after dark	4.15222	3.96745	4.38344