| Value | Category | Cases | |
|---|---|---|---|
| 0 | Does not charge | 118 | 
                                
                                51.3%
                             | 
| 10 | 2 | 
                                
                                0.9%
                             | |
| 15 | 2 | 
                                
                                0.9%
                             | |
| 20 | 8 | 
                                
                                3.5%
                             | |
| 25 | 2 | 
                                
                                0.9%
                             | |
| 30 | 4 | 
                                
                                1.7%
                             | |
| 35 | 1 | 
                                
                                0.4%
                             | |
| 40 | 2 | 
                                
                                0.9%
                             | |
| 100 | 2 | 
                                
                                0.9%
                             | |
| 150 | 1 | 
                                
                                0.4%
                             | |
| 180 | 1 | 
                                
                                0.4%
                             | |
| 200 | 1 | 
                                
                                0.4%
                             | |
| 300 | 3 | 
                                
                                1.3%
                             | |
| 450 | 4 | 
                                
                                1.7%
                             | |
| 600 | 4 | 
                                
                                1.7%
                             | |
| 800 | 2 | 
                                
                                0.9%
                             | |
| 900 | 2 | 
                                
                                0.9%
                             | |
| 1000 | 2 | 
                                
                                0.9%
                             | |
| 1200 | 1 | 
                                
                                0.4%
                             | |
| 1800 | 5 | 
                                
                                2.2%
                             | |
| 1950 | 1 | 
                                
                                0.4%
                             | |
| 2000 | 2 | 
                                
                                0.9%
                             | |
| 2160 | 1 | 
                                
                                0.4%
                             | |
| 2200 | 1 | 
                                
                                0.4%
                             | |
| 3150 | 1 | 
                                
                                0.4%
                             | |
| 3600 | 9 | 
                                
                                3.9%
                             | |
| 4000 | 1 | 
                                
                                0.4%
                             | |
| 4050 | 1 | 
                                
                                0.4%
                             | |
| 4350 | 1 | 
                                
                                0.4%
                             | |
| 4400 | 1 | 
                                
                                0.4%
                             | |
| 4500 | 14 | 
                                
                                6.1%
                             | |
| 5400 | 5 | 
                                
                                2.2%
                             | |
| 6300 | 2 | 
                                
                                0.9%
                             | |
| 6500 | 1 | 
                                
                                0.4%
                             | |
| 6750 | 1 | 
                                
                                0.4%
                             | |
| 7200 | 4 | 
                                
                                1.7%
                             | |
| 7500 | 1 | 
                                
                                0.4%
                             | |
| 8600 | 1 | 
                                
                                0.4%
                             | |
| 9000 | 1 | 
                                
                                0.4%
                             | |
| 10500 | 1 | 
                                
                                0.4%
                             | |
| 10800 | 1 | 
                                
                                0.4%
                             | |
| 12000 | 1 | 
                                
                                0.4%
                             | |
| 13550 | 1 | 
                                
                                0.4%
                             | |
| 16500 | 1 | 
                                
                                0.4%
                             | |
| 99995 | Missing | 7 | 
                                
                                3%
                             | 
| 99996 | Other | 0 | 
                                
                                0%
                             | 
| 99997 | Refusal | 0 | 
                                
                                0%
                             | 
| 99998 | Dont Know | 0 | 
                                
                                0%
                             | 
| 99999 | Not applicable | 2 | 
                                
                                0.9%
                             |