condition	mean	min	max
0 h after light	7.1457250000000005	6.48539	7.80606
4 h after light	5.241645	4.4493	6.03399
8 h after light	4.79161	4.05001	5.53321
4 h after dark	7.3025	5.90547	8.69953
8 h after dark	8.672095	8.40163	8.94256
12 h after dark	6.28226	5.76939	6.79513