| Total assets | 0.49a | 0.47a | 0.43a | 0.44a | 0.38a |
| Property, plant and equipment | 0.14a | 0.13a | 0.12a | 0.12a | 0.09a |
| Total noncurrent liabilities | 0.04a | 0.05a | 0.02a | 0.02a | 0.02a |
| Total liabilities | 0.19a | 0.19a | 0.16a | 0.19a | 0.16a |
| Total net assets | 0.3a | 0.28a | 0.27a | 0.24a | 0.22a |