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| Company | Unit | Dec 1991 | Mar 1992 | Jun 1992 | Sep 1992 | Dec 1992 | Mar 1993 | Jun 1993 | Sep 1993 | Dec 1993 | Mar 1994 | Jun 1994 | Sep 1994 | Dec 1994 | Mar 1995 | Jun 1995 | Sep 1995 | Dec 1995 | Mar 1996 | Jun 1996 | Sep 1996 | Dec 1996 | Mar 1997 | Jun 1997 | Sep 1997 | Dec 1997 | Mar 1998 | Jun 1998 | Sep 1998 | Dec 1998 | Mar 1999 | Jun 1999 | Sep 1999 | Dec 1999 | Mar 2000 | Jun 2000 | Sep 2000 | Dec 2000 | Mar 2001 | Jun 2001 | Sep 2001 | Dec 2001 | Mar 2002 | Jun 2002 | Sep 2002 | Dec 2002 | Mar 2003 | Jun 2003 | Sep 2003 | Dec 2003 | Mar 2004 | Jun 2004 | Sep 2004 | Dec 2004 | Mar 2005 | Jun 2005 | Sep 2005 | Dec 2005 | Mar 2006 | Jun 2006 | Sep 2006 | Dec 2006 | Mar 2007 | Jun 2007 | Sep 2007 | Dec 2007 | Mar 2008 | Jun 2008 | Sep 2008 | Dec 2008 | Mar 2009 | Jun 2009 | Sep 2009 | Dec 2009 | Mar 2010 | Jun 2010 | Sep 2010 | Dec 2010 | Mar 2011 | Jun 2011 | Sep 2011 | Dec 2011 | Mar 2012 | Jun 2012 | Sep 2012 | Dec 2012 | Mar 2013 | Jun 2013 | Sep 2013 | Dec 2013 |
| Audi Group | % | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | |||||||||||||
| Volkswagen Group | % | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | 37.7 | 37.4 | 37.7 | 38.3 | 39.5 |
Helgi Library 
