| Revenue | 31/12/2018 | 31/12/2017 | 31/12/2016 | 31/12/2015 |
| Total revenue | 859,634 | 796,392 | 763,520 | 719,168 |
| Cost of revenue | 390,524 | 362,448 | 347,578 | 329,450 |
| Gross profit | 469,110 | 433,944 | 415,942 | 389,718 |
| Operating expenses |
| Research development | 37,976 | 32,307 | 32,254 | 27,436 |
| Selling general and administrative | 353,245 | 330,636 | 312,818 | 286,893 |
| Non-recurring | - | - | - | - |
| Others | - | - | - | - |
| Total operating expenses | 781,745 | 725,391 | 692,650 | 643,779 |
| Operating income or loss | 77,889 | 71,001 | 70,870 | 75,389 |
| Income from continuing operations |
| Total other income/expenses net | -27,236 | -42,269 | -51,495 | -30,245 |
| Earnings before interest and taxes | 77,889 | 71,001 | 70,870 | 75,389 |
| Interest expense | -20,652 | -18,203 | -15,359 | -6,031 |
| Income before tax | 50,653 | 28,732 | 19,375 | 45,144 |
| Income tax expense | 9,799 | -26,755 | 4,711 | 14,646 |
| Minority interest | - | - | - | - |
| Net income from continuing ops | 40,854 | 55,487 | 14,664 | 30,498 |
| Non-recurring events |
| Discontinued operations | - | - | - | - |
| Extraordinary items | - | - | - | - |
| Effect of accounting changes | - | - | - | - |
| Other items | - | - | - | - |
| Net income |
| Net income | 40,854 | 55,487 | 14,664 | 30,498 |
| Preferred stock and other adjustments | - | - | - | - |
| Net income applicable to common shares | 40,854 | 55,487 | 14,664 | 30,498 |