value	unc_up	unc_lo	author	ref	method
0.180	0.1100	0.1100	Nugent	2016AJ....152...63N	NEATM
0.205	0.0270	0.0270	Masiero	2012ApJ...759L...8M	NEATM
0.320	0.0427	0.0427	Masiero	2011ApJ...741...68M	NEATM
0.370	0.0500	0.0500	Masiero	2014ApJ...791..121M	NEATM