value	unc_up	unc_lo	author	ref	method
0.060	0.0400	0.0400	Nugent	2016AJ....152...63N	NEATM
0.072	0.0200	0.0200	Masiero	2012ApJ...759L...8M	NEATM
0.081	0.0410	0.0830	Masiero	2021PSJ.....2..162M	NEATM