use strict;
use warnings;
use Data::Dump qw/dd/;

my %report;
while (my $line = <DATA>) {
  next if $line =~ /^\s*$/; 				    # skip empty lines
  my @fields = (split / /, $line);
  $report{$_}{$fields[$_]}++  for 2,4,5,9,7,1;
}

dd \%report;

__DATA__
483 OS dx-32 1 charles list4 aardvark.com ty-off lx-on C 01
483 DS dx-14 1 james list3 23.456.12.7 ty-on lx-on B 01
769 XO dx-32 5 sully nolist widgets.com ty-on lx-on V 07