| – | = Non-occurrence. |
|---|---|
| .. | = Not available. |
| … | = Confidential data closed with data security barriers. |
| __ , | | = Break in series (limited comparability). |
| x | = Not applicable. |
| empty space | = Block of not applicable items. |
| 0, 0.0 | = Less than half of unit. |
| blue number | = Preliminary data. |
| green number | = Revised data. |
| NOTES The sum of part figures may differ from the total, due to roundings. Stock data refer to 31 December, if there is not any other note. Billion is equal to thousand millions. | |