| Vuosi Year |
Tuotantomäärä (milj. tonnia) Production (million tonnes) |
Henkilöstömäärä (1000 henkilöä) Personnel (thousands of employees) |
| 1988 | 15.8 | 14.5 |
| 1991 | 15.4 | 13.9 |
| 1992 | 14.6 | 13.1 |
| 1993 | 16.7 | 12.6 |
| 1994 | 15.4 | 17.9 |
| 1995 | 17.7 | 18.9 |
| 1996 | 19.8 | 19.3 |
| 1997 | 23.8 | 20.7 |
| 1998 | 24.9 | 21.9 |
| 1999 | 24.4 | 22.8 |
| 2000 | 24.8 | 24.9 |
| 2001 | 23.7 | 24.2 |
| 2002 | 24.8 | 24.3 |
| 2003 | 25.5 | 23.3 |
| 2004 | 26.2 | 19.7 |
| 2005 | 25.6 | 19.2 |
| 2006 | 28.5 | 19.3 |
| 2007 | 29.1 | 20.3 |
| 2008 | 29.5 | 22.7 |
| 2009 | 27.2 | 20.7 |
| 2010 | 27.4 | 20.0 |
| 2011 | 28.2 | 20.1 |