value	unc_up	unc_lo	author	ref	method
0.056	0.0080	0.0080	Masiero	2012ApJ...759L...8M	NEATM
0.060	0.0300	0.0300	Nugent	2016AJ....152...63N	NEATM
0.061	0.0298	0.0298	Masiero	2017AJ....154..168M	NEATM