| Value | Category | Cases | |
|---|---|---|---|
| 1996 | 1 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    |
| 1999 | 1 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    |
| 2000 | 4 | 
                                                                 
                                    
                                    1.3%
                                 
                                                             | 
                                                        
                    |
| 2003 | 1 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    |
| 2004 | 1 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    |
| 2005 | 1 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    |
| 2006 | 6 | 
                                                                 
                                    
                                    2%
                                 
                                                             | 
                                                        
                    |
| 2007 | 1 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    |
| 2008 | 3 | 
                                                                 
                                    
                                    1%
                                 
                                                             | 
                                                        
                    |
| 2009 | 8 | 
                                                                 
                                    
                                    2.7%
                                 
                                                             | 
                                                        
                    |
| 2010 | 4 | 
                                                                 
                                    
                                    1.3%
                                 
                                                             | 
                                                        
                    |
| 2011 | 17 | 
                                                                 
                                    
                                    5.6%
                                 
                                                             | 
                                                        
                    |
| 2012 | 7 | 
                                                                 
                                    
                                    2.3%
                                 
                                                             | 
                                                        
                    |
| 2013 | 12 | 
                                                                 
                                    
                                    4%
                                 
                                                             | 
                                                        
                    |
| 2014 | 22 | 
                                                                 
                                    
                                    7.3%
                                 
                                                             | 
                                                        
                    |
| 2015 | 23 | 
                                                                 
                                    
                                    7.6%
                                 
                                                             | 
                                                        
                    |
| 2016 | 39 | 
                                                                 
                                    
                                    13%
                                 
                                                             | 
                                                        
                    |
| 2017 | 16 | 
                                                                 
                                    
                                    5.3%
                                 
                                                             | 
                                                        
                    |
| 2018 | 13 | 
                                                                 
                                    
                                    4.3%
                                 
                                                             | 
                                                        
                    |
| 2019 | 29 | 
                                                                 
                                    
                                    9.6%
                                 
                                                             | 
                                                        
                    |
| 2020 | 28 | 
                                                                 
                                    
                                    9.3%
                                 
                                                             | 
                                                        
                    |
| 2021 | 21 | 
                                                                 
                                    
                                    7%
                                 
                                                             | 
                                                        
                    |
| 2022 | 40 | 
                                                                 
                                    
                                    13.3%
                                 
                                                             | 
                                                        
                    |
| 2023 | 3 | 
                                                                 
                                    
                                    1%
                                 
                                                             |