| Revenue | 31/08/2018 | 31/08/2017 | 31/08/2016 | 31/08/2015 |
| Total revenue | 211,802 | 212,756 | 209,594 | 205,113 |
| Cost of revenue | 58,915 | 57,241 | 60,642 | 60,364 |
| Gross profit | 152,887 | 155,515 | 148,952 | 144,749 |
| Operating expenses |
| Research development | - | - | - | - |
| Selling general and administrative | 5,199 | 5,714 | 5,963 | 6,794 |
| Non-recurring | - | - | - | - |
| Others | -624 | -1,186 | -2,365 | -3,008 |
| Total operating expenses | 64,114 | 62,955 | 66,605 | 67,158 |
| Operating income or loss | 147,688 | 149,801 | 142,989 | 137,955 |
| Income from continuing operations |
| Total other income/expenses net | -9,832 | 7,355 | -15,415 | 15,576 |
| Earnings before interest and taxes | 147,688 | 149,801 | 142,989 | 137,955 |
| Interest expense | -24,488 | -23,926 | -23,997 | -21,651 |
| Income before tax | 137,856 | 157,156 | 127,574 | 153,531 |
| Income tax expense | - | - | - | - |
| Minority interest | - | - | - | - |
| Net income from continuing ops | 137,856 | 157,156 | 127,574 | 153,531 |
| Non-recurring events |
| Discontinued operations | - | - | - | - |
| Extraordinary items | - | - | - | - |
| Effect of accounting changes | - | - | - | - |
| Other items | - | - | - | - |
| Net income |
| Net income | 137,856 | 157,156 | 127,574 | 153,531 |
| Preferred stock and other adjustments | - | - | - | - |
| Net income applicable to common shares | 137,856 | 157,156 | 127,574 | 153,531 |