condition	mean	min	max
2 h after light	18.84185	13.6737	21.9782
6 h after light	16.758433333333333	11.5131	21.2623
10 h after light	13.728285	9.6433	23.3617
14 h after light	15.824033333333333	12.0247	20.723
18 h after light	19.00845	14.6401	27.5073
2 h after dark	19.63795	13.035	25.7129