| Revenue | 31/12/2018 | 31/12/2017 | 31/12/2016 | 31/12/2015 |
| Total revenue | 2,010,300 | 2,035,000 | 2,068,800 | 2,014,500 |
| Cost of revenue | 501,700 | 450,200 | 385,900 | 346,400 |
| Gross profit | 1,508,600 | 1,584,800 | 1,682,900 | 1,668,100 |
| Operating expenses |
| Research development | - | - | - | - |
| Selling general and administrative | 89,800 | 102,900 | 78,200 | 37,700 |
| Non-recurring | - | - | - | - |
| Others | 163,300 | 157,700 | 153,200 | 136,200 |
| Total operating expenses | 1,462,800 | 1,384,100 | 1,266,500 | 1,119,900 |
| Operating income or loss | 547,500 | 650,900 | 802,300 | 894,600 |
| Income from continuing operations |
| Total other income/expenses net | -302,700 | -183,600 | 276,500 | -262,400 |
| Earnings before interest and taxes | 547,500 | 650,900 | 802,300 | 894,600 |
| Interest expense | -163,000 | -143,200 | -175,500 | -188,800 |
| Income before tax | 244,800 | 467,300 | 1,078,800 | 632,200 |
| Income tax expense | -41,900 | -130,600 | 114,100 | 84,900 |
| Minority interest | 102,200 | 124,600 | 138,600 | 128,300 |
| Net income from continuing ops | 286,700 | 597,900 | 964,700 | 547,300 |
| Non-recurring events |
| Discontinued operations | - | - | - | - |
| Extraordinary items | - | - | - | - |
| Effect of accounting changes | - | - | - | - |
| Other items | - | - | - | - |
| Net income |
| Net income | 292,400 | 596,100 | 962,700 | 544,900 |
| Preferred stock and other adjustments | - | - | - | - |
| Net income applicable to common shares | 244,300 | 548,800 | 947,700 | 544,900 |