value	unc_up	unc_lo	author	ref	method
0.110	0.0700	0.0700	Nugent	2016AJ....152...63N	NEATM
0.133	0.0250	0.0250	Masiero	2012ApJ...759L...8M	NEATM
0.169	0.0143	0.0143	Masiero	2011ApJ...741...68M	NEATM
0.170	0.0400	0.0400	Masiero	2014ApJ...791..121M	NEATM