| Responses | 
                                                
                                                    | 1 | Less than £520 | 15 |  
                                                    | 2 | £520 to less than £1,040 | 19 |  
                                                    | 3 | £1,040 to less than £1,560 | 33 |  
                                                    | 4 | £1,560 to less than £2,080 | 20 |  
                                                    | 5 | £2,080 to less than £2,600 | 57 |  
                                                    | 6 | £2,600 to less than £3,120 | 44 |  
                                                    | 7 | £3,120 to less than £3,640 | 37 |  
                                                    | 8 | £3,640 to less than £4,160 | 50 |  
                                                    | 9 | £4,160 to less than £4,680 | 47 |  
                                                    | 10 | £4,680 to less than £5,200 | 102 |  
                                                    | 11 | £5,200 to less than £6,240 | 127 |  
                                                    | 12 | £6,240 to less than £7,280 | 102 |  
                                                    | 13 | £7,280 to less than £8,230 | 91 |  
                                                    | 14 | £8,320 to less than £9,360 | 64 |  
                                                    | 15 | £9,360 to less than £10,400 | 85 |  
                                                    | 16 | £10,400 to less than £11,440 | 69 |  
                                                    | 17 | £11,440 to less than £12,480 | 50 |  
                                                    | 18 | £12,480 to less than £13,520 | 62 |  
                                                    | 19 | £13,520 to less than £14,560 | 41 |  
                                                    | 20 | £14,560 to less than £15,600 | 63 |  
                                                    | 21 | £15,600 to less than £16,640 | 44 |  
                                                    | 22 | £16,640 to less than £17,680 | 44 |  
                                                    | 23 | £17,680 to less than £18,720 | 46 |  
                                                    | 24 | £18,720 to less than £19,760 | 38 |  
                                                    | 25 | £19,760 to less than £20,800 | 34 |  
                                                    | 26 | £20,800 to less than £23,400 | 78 |  
                                                    | 27 | £23,400 to less than £26,000 | 80 |  
                                                    | 28 | £26,000 to less than £28,600 | 50 |  
                                                    | 29 | £28,600 to less than £31,200 | 44 |  
                                                    | 30 | £31,200 to less than £33,800 | 18 |  
                                                    | 31 | £33,800 to less than £36,400 | 27 |  
                                                    | 32 | £36,400 or more | 110 |  
                                                    | 33 | No source of income | 0 |  
                                                    | 98 | Refused | 71 |  
                                                    | 99 | Don't know | 32 |  
                                                    | Sysmiss |  | 46 |  |