condition	mean	min	max
4 h after light	19.448349999999998	18.379566	20.517134
8 h after light	22.117815999999998	20.584245	23.651387
12 h after light	21.2994685	20.976743	21.622194
4 h after dark	20.138840000000002	20.019066	20.258614
8 h after dark	19.933788	19.018967	20.848609
12 h after dark	17.609645	17.609645	17.609645