Available flags:
| b | break in time series | c | confidential | 
| d | definition differs, see metadata | e | estimated | 
| f | forecast | i | see metadata | 
| m | imputed | n | not significant | 
| p | provisional | r | revised | 
| s | Eurostat estimate | u | low reliability | 
| x | dropped due to insufficient sample size | y | unreliable due to small sample size | 
| z | not applicable |