value	unc_up	unc_lo	author	ref	method
0.037	0.0028	0.0028	Masiero	2011ApJ...741...68M	NEATM
0.040	0.0500	0.0500	Nugent	2016AJ....152...63N	NEATM
0.042	0.0418	0.0418	Masiero	2017AJ....154..168M	NEATM