condition	mean	min	max
4 h after light	10.580195	7.88879	13.2716
8 h after light	16.44265	15.935	16.9503
12 h after light	19.47005	18.9877	19.9524
4 h after dark	20.6803	19.3573	21.6608
8 h after dark	18.205566666666666	16.399	20.3706
12 h after dark	14.354033333333334	13.8869	15.1485