Index of /pos/1984/desc
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pos1985/
pos1986/
pos1987/
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pos1989/
pos1990/
Apache/2.4.46 (FreeBSD) PHP/7.4.16 OpenSSL/1.1.1h-freebsd mod_apreq2-20090110/2.8.0 mod_perl/2.0.11 Perl/v5.32.0 Server at data.nber.org Port 80