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              [html]<thead><tr><td></td><td>2013</td><td>2012</td></tr></thead><tbody><tr><td>Current asset Long - term asset</td><td>$</td><td>73148</td></tr><tr><td></td><td>$</td><td>842</td></tr><tr><td>221</td><td>50</td><td>Current liabilityLong - term liability</td></tr><tr><td></td><td>( 63 )( 83 )</td><td>( 144 )( 417 )</td></tr><tr><td>( 146 )</td><td>( 561 )</td><td>Net mark - to - market asset ( liability )</td></tr></tbody>
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  In 2013, we recorded a $4 million increase to net income related to 
  hedge ineffectiveness (2012 – $4 million decrease). 