I want to pull in data using a XML::XPath parser from a XML DB file from the Worldbank site. The problem is that I'm not seeing any results in the output. I must be missing something in the code. Ideally, I would like to extract just the death rate statistics from each country XML DB (year and value). I'm using this as part of my input:

http://data.worldbank.org/sites/default/files/countries/en/afghanistan_en.xml

use strict;
use LWP 5.64;
use HTML::ContentExtractor;
use XML::XPath;

my $agent1 = LWP::UserAgent->new;
my $extractor = HTML::ContentExtractor->new();

#Retrieve main Worldbank country site
my $mainlink = "http://data.worldbank.org/country/";
my $page = $agent1->get("$mainlink");
my $fulltext = $page->decoded_content();

#Match to just all available countries in Worldbank
my $country = "";
my @countryList;
if (@countryList = $fulltext =~ m/(http:\/\/data\.worldbank\.org\/country\/.*?")/gi){
    foreach $country(@countryList){
        #Remove " at the end of link
        $country=~s/\"//gi;
        print "\n" . $country;

        #Retrieve each country profile's XML DB file
        my $page = $agent1->get("$country");
        my $fulltext = $page->decoded_content();
        my $XML_DB = "";
        my @countryXMLDBList;

        if (@countryXMLDBList = $fulltext =~ m/(http:\/\/data\.worldbank\.org\/sites\/default\/files\/countries\/en\/.*?\.xml)/gi){
            foreach $XML_DB(@countryXMLDBList){

                my $page = $agent1->get("$XML_DB");
                my $fulltext = $page->decoded_content();
                #print $fulltext; 
                #Use XML XPath parser to find elements related to death rate
                my $xp = XML::XPath->new($fulltext); #my $xp = XML::XPath->new("afghanistan_en.xml"); 
                my $nodeSet = $xp->find("//*");
                if (!$nodeSet->isa('XML::XPath::NodeSet') || $nodeSet->size() == 0) {
                    #No match found
                    print "\nMatch not found!";
                    exit;
                } else {
                    foreach my $node ($nodeSet->get_nodelist){
                        print "\n" . $node->find('country')->string_value;
                        print "\n" . $node->find('indicator')->string_value;
                        print "\n" . $node->find('year')->string_value;
                        print "\n" . $node->find('value')->string_value;
                        exit;
                    }
                }
            }
            #Build line graph based on death rate statistics and output some image file format
        }
    }
}

I am also looking into using the xpath expression "following-sibling", but not sure how to use it correctly. For example, I have the following set of XML data where I am only interested in pulling siblings directly after the indicator for just death rate data.

<data>
<country id="AFG">Afghanistan</country>
<indicator id="SP.DYN.CDRT.IN">Death rate, crude (per 1,000 people)</indicator>
<year>2006</year>
<value>20.3410000</value>
</data>
-
<data>
<country id="AFG">Afghanistan</country>
<indicator id="SP.DYN.CDRT.IN">Death rate, crude (per 1,000 people)</indicator>
<year>2007</year>
<value>19.9480000</value>
</data>
-
<data>
<country id="AFG">Afghanistan</country>
<indicator id="SP.DYN.CDRT.IN">Death rate, crude (per 1,000 people)</indicator>
<year>2008</year>
<value>19.5720000</value>
</data>
-
<data>
<country id="AFG">Afghanistan</country>
<indicator id="IC.EXP.DOCS">Documents to export (number)</indicator>
<year>2005</year>
<value>7.0000000</value>
</data>
-
<data>
<country id="AFG">Afghanistan</country>
<indicator id="IC.EXP.DOCS">Documents to export (number)</indicator>
<year>2006</year>
<value>12.0000000</value>
</data>
-
<data>
<country id="AFG">Afghanistan</country>
<indicator id="IC.EXP.DOCS">Documents to export (number)</indicator>
<year>2007</year>
<value>12.0000000</value>
</data>

Any help would be much appreciated!!!