condition	mean	min	max
4 h after light	5.238406666666666	5.145969999999999	5.4135599999999995
8 h after light	5.37306	5.12386	5.5932
12 h after light	5.13026	4.95407	5.27484
4 h after dark	5.429293333333334	5.35353	5.50681
8 h after dark	5.238593333333333	5.0359300000000005	5.5641099999999994
12 h after dark	5.197126666666667	5.12798	5.32482