condition	mean	min	max
4 h after light	28.0578785	21.844818	34.270939
8 h after light	23.0940935	22.663223	23.524964
12 h after light	21.256636	18.988308	23.524964
4 h after dark	23.761928	20.560752	26.963104
8 h after dark	21.2395925	19.797045	22.68214
12 h after dark	23.090777	23.090777	23.090777