HELLA`s ROA reached 5.37 % in 2019. This is 50.4 % less than in the previous year.
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| Company | Unit | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 |
| HELLA Group | % | ... | ... | ... | ... | ... | ... | 5.62 | 6.11 | 5.50 | 5.18 | 6.98 | ||||||||
| Mahle | % | ... | ... | ... | ... | ... | 4.54 | 4.33 | 1.68 | 0.793 | 1.26 | ... | ||||||||
| Robert Bosch | % | 2.02 | 4.10 | 4.59 | 2.45 | 3.39 | ... | |||||||||||||
| Sandler AG | % | ... | ... | ... | ... | ... | 12.2 | ... | ... | ... | ... | ... | ... | |||||||
| VEKA | % | ... | ... | ... | ... | ... | ... | ... | ... | 2.76 | 1.30 | ... | ... | 4.99 |
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