| Annual · values | 2021 | 2020 | 2019 | 2018 |
|---|---|---|---|---|
| Gross Margin | 52.48% | 53.06% | 53.23% | 54.21% |
| Operating Margin | 2.87% | 5.84% | 2.45% | 2.63% |
| EBITDA Margin | 5.06% | 8.00% | 4.36% | 4.21% |
| Net Margin | 2.25% | 4.30% | 1.95% | 1.78% |
| Current Ratio | — | — | — | — |
| Quick Ratio | — | — | — | — |
| Debt / Equity | 0.19 | 0.05 | 0.12 | 0.06 |
| ROE | 7.78% | 13.54% | 7.55% | 7.33% |
| ROA | 6.55% | 10.05% | 5.60% | 5.51% |
| Asset Turnover | 2.91 | 2.34 | 2.88 | 3.10 |
| Book Value / Share | 13.37 | 12.41 | 10.73 | 9.55 |