condition	mean	min	max
4 h after light	12.8740145	11.71899	14.029039
8 h after light	10.131881	9.918354	10.345408
12 h after light	13.6058795	11.760424	15.451335
4 h after dark	17.6162965	12.134308	23.098285
8 h after dark	21.7430775	18.907182	24.578973
12 h after dark	19.143614	19.143614	19.143614