North Ayrshire Inverclyde Number of households % Number of households % 2005-2008 15,000 24% 9,000 24% 2007-2009 16,000 26% 9,000 23% 2008-2010 19,000 31% 10,000 27% 2009-2011 19,000 32% 11,000 29% 2010-2012 23,000 38% 12,000 34% 2011-2013 24,000 38% 13,000 37% 2012-2014 25,000 40% 16,000 42% 2013-2015 23,000 36% 15,000 41% 2014-2016 19,000 30% 14,000 38% 2015-2017 17,000 26% 11,000 31% Source: Scottish House Condition Survey. 1.