condition	mean	min	max
4 h after light	8.0622595	8.032394	8.092125
8 h after light	8.13981	7.295647	8.983973
12 h after light	8.1546485	7.591019	8.718278
4 h after dark	8.4392265	8.074546	8.803907
8 h after dark	8.074897	7.93511	8.214684
12 h after dark	7.325853	7.325853	7.325853