| Revenue | 869.7 | 863.1 | 871.3 | 939.7 | 1,004.9 |
| Cost of sales | (384.7) | (390.3) | (394.2) | (435.5) | (469.8) |
| Gross profit | 485.0 | 472.8 | 477.1 | 504.2 | 535.1 |
| Operating expenses | (364.4) | (373.7) | (400.0) | (426.4) | (450.5) |
| | | | | |
| Operating profit before non-recurring items | 128.1 | 97.2 | 78.1 | 77.8 | 84.6 |
| Non-recurring operating expenses | (7.5) | 1.9 | (1.0) | (0.2) | (0.3) |
| | | | | |
| Operating profit | 120.6 | 99.1 | 77.1 | 77.6 | 84.3 |
| Net finance costs | (2.5) | (5.0) | (6.1) | (5.0) | (3.5) |
| | | | | |
| Profit before tax and non-recurring items | 125.6 | 92.2 | 72.0 | 72.8 | 81.1 |
| Non-recurring operating expenses | (7.5) | 1.9 | (1.0) | (0.2) | (0.3) |
| | | | | |
| Profit before tax | 118.1 | 94.1 | 71.0 | 72.6 | 80.8 |
| Taxation | (34.7) | (24.8) | (18.2) | (17.0) | (17.4) |
| Taxation on non-recurring items | 2.1 | (0.9) | (0.1) | (0.1) | (0.1) |
| Profit attributable to equity shareholders | 85.5 | 68.4 | 52.7 | 55.5 | 63.3 |
| Basic earnings per share | 40.7p | 34.2p | 27.2p | 28.6p | 32.5p |
| Basic earnings per share before non-recurring items | 43.2p | 33.7p | 27.7p | 28.8p | 32.7p |
| Weighted average number of shares | 210.4m | 199.9m | 194.3m | 194.0m | 194.2m |