value	unc_up	unc_lo	author	ref	method
0.026	0.0152	0.0152	Masiero	2017AJ....154..168M	NEATM
0.040	0.1500	0.1500	Nugent	2016AJ....152...63N	NEATM
0.067	0.0150	0.0150	Masiero	2012ApJ...759L...8M	NEATM
0.136	0.0103	0.0103	Masiero	2011ApJ...741...68M	NEATM