condition	mean	min	max
4 h after light	8.882670000000001	6.56634	11.199
8 h after light	6.6934000000000005	6.44424	6.94256
12 h after light	6.81184	6.23599	7.38769
4 h after dark	7.418965	6.25279	8.58514
8 h after dark	4.55893	4.30081	4.81705
12 h after dark	8.16543	7.67468	8.65618