Sure, you just want to sort the keys based on their values:

my %hash = ( ... );

my @sorted_keys = sort { $hash{ $a } <=> $hash{ $b } } 
                      keys %hash;

print $_, " ", $hash{ $_ }, "\n" foreach ( @sorted_keys );
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Update fixed terminology

----------------------------------------------------- Dr. Michael K. Neylon - mneylon-pm@masemware.com || "You've left the lens cap of your mind on again, Pinky" - The Brain