| Year | Hot Spots |
| Proportion of BIZ Hot Spots in relation to the total |
| BIZ (+) | Total | (%) | |
| 2004 | 465 | 30.629 | 1.52 |
| 2005 | 492 | 34.104 | 1.44 |
| 2006 | 383 | 25.341 | 1.51 |
| 2007 | 395 | 29.264 | 1.35 |
| 2008 | 357 | 22.455 | 1.59 |
| 2009 | 275 | 18.647 | 1.47 |
| 2010 | 353 | 26.478 | 1.33 |
| 2011 | 168 | 11.254 | 1.49 |
| 2012 | 225 | 16.735 | 1.34 |
| 2013 | 116 | 8.190 | 1.42 |
| 2014 | 183 | 14.844 | 1.23 |
| 2015 | 280 | 18.908 | 1.48 |
| 2016 | 160 | 11.838 | 1.35 |
| 2017 | 253 | 23.698 | 1.07 |
| 2018 | 129 | 10.318 | 1.25 |
| 2019 | 124 | 15.730 | 0.79 |