condition	mean	min	max
4 h after light	9.204945	8.52918	9.88071
8 h after light	9.883645	9.18999	10.5773
12 h after light	13.68945	12.9106	14.4683
4 h after dark	16.3087	16.0566	16.5608
8 h after dark	16.31045	14.6141	18.0068
12 h after dark	13.953399999999998	13.6894	14.2174