condition	mean	min	max
4 h after light	19.2999965	18.683057	19.916936
8 h after light	19.9966805	19.127183	20.866178
12 h after light	22.777014	22.04673	23.507298
4 h after dark	16.4706725	13.814162	19.127183
8 h after dark	22.1787075	21.497537	22.859878
12 h after dark	17.641389	17.641389	17.641389