| Year | Housing vacancy rate (%) | Interval |
| 2007 | 15.77 | warning |
| 2008 | 14.64 | warning |
| 2009 | 27.03 | dangerous |
| 2010 | 22.34 | dangerous |
| 2011 | 26.22 | dangerous |
| 2012 | 25.2 | dangerous |
| 2013 | 27.51 | dangerous |
| 2014 | 23.68 | dangerous |
| 2015 | 38.52 | dangerous |
| 2016 | 37.5 | dangerous |
| 2017 | 38.66 | dangerous |