<?xml version="1.0" encoding="UTF-8"?>
<freq>
  <survey year="2008">
    <freq rControl="1" count="1707"/>
    <freq rControl="2" count="1684"/>
    <freq rControl="3" count="1139"/>
  </survey>
  <survey year="2007">
    <freq rControl="-999" count="1"/>
    <freq rControl="1" count="1715"/>
    <freq rControl="2" count="1695"/>
    <freq rControl="3" count="1115"/>
  </survey>
  <survey year="1980">
    <freq rControl="-999" count="1"/>
    <freq rControl="1" count="1455"/>
    <freq rControl="2" count="1483"/>
    <freq rControl="3" count="153"/>
  </survey>
</freq>

