Name	Last modified	Size	Description
	Parent Directory		-
	pos1991.dta	2012-10-05 09:49	97M
	pos1991.dta.bz2	2012-10-05 09:49	4.6M
	pos1991.rdata	2018-03-19 15:07	181M
	pos1991.sas7bdat	2011-06-16 12:02	113M
	pos1991.sas7bdat.bz2	2011-06-16 12:02	4.4M

Apache/2.4.53 (FreeBSD) OpenSSL/1.1.1t-freebsd mod_apreq2-20090110/2.8.0 mod_perl/2.0.12 Perl/v5.34.3 Server at data.nber.org Port 443