condition	mean	min	max
4 h after light	7.27518	6.99731	7.55305
8 h after light	6.555175	6.51559	6.59476
12 h after light	5.835515	5.83494	5.83609
4 h after dark	6.616103333333333	6.30331	6.88319
8 h after dark	6.2299500000000005	5.7588	6.50738
12 h after dark	7.240566666666667	6.53598	7.90155