condition	mean	min	max
4 h after light	19.14785	19.0734	19.2223
8 h after light	18.0287	16.6775	19.3799
12 h after light	30.7269	29.1038	32.35
4 h after dark	50.5147	48.471	52.5584
8 h after dark	49.0689	46.4449	51.6929
12 h after dark	39.4058	36.7034	42.1082