2017—Subsec. (f). Pub. L. 115–91 substituted “December 31, 2018” for “December 31, 2017”.

2016—Subsec. (f). Pub. L. 114–328 substituted “December 31, 2017” for “December 31, 2016”.

2015—Subsec. (f). Pub. L. 114–92 substituted “December 31, 2016” for “December 31, 2015”.

2014—Subsec. (f). Pub. L. 113–291 substituted “December 31, 2015” for “December 31, 2014”.

2013—Subsec. (f). Pub. L. 113–66 substituted “December 31, 2014” for “December 31, 2013”.

Pub. L. 112–239 substituted “December 31, 2013” for “December 31, 2012”.

2011—Subsec. (f). Pub. L. 112–81 substituted “December 31, 2012” for “December 31, 2011”.

Pub. L. 111–383 substituted “December 31, 2011” for “December 31, 2010”.

2009—Subsec. (f). Pub. L. 111–84 substituted “December 31, 2010” for “December 31, 2009”.