value	unc_up	unc_lo	author	ref	method
0.240	0.1100	0.1100	Nugent	2016AJ....152...63N	NEATM
0.334	0.0260	0.0260	Masiero	2012ApJ...759L...8M	NEATM
0.390	0.0908	0.0908	Masiero	2011ApJ...741...68M	NEATM
0.420	0.0800	0.0800	Masiero	2014ApJ...791..121M	NEATM