User-agent: *
Disallow: /perl
Disallow: /2001
Disallow: /2002
Disallow: /2003
Disallow: /2004
Disallow: /2005
Disallow: /2006
Disallow: /2007
Disallow: /2008
Disallow: /2009
Disallow: /201
Disallow: /20
Disallow: /2