Based on a comparison of 24 countries in 2011, Luxembourg ranked the highest in Number of foreign languages known (self-reported) by occupation - Clerical support workers, service and sales workers - 3 languages or more - Percentage with 75.1% followed by Slovenia and Finland. On the other end of the scale was Hungary with 1.70%, Poland with 3.70% and Italy with 4.20%.
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| Countries | Unit | 2007 | 2008 | 2009 | 2010 | 2011 |
| Austria | % | 8.90 | ... | ... | ... | |
| Belgium | % | 34.0 | ... | ... | ... | |
| Bulgaria | % | 5.00 | ... | ... | ... | ... |
| Croatia | % | 11.0 | ... | ... | ... | ... |
| Cyprus | % | 9.60 | ... | ... | ... | |
| Czech Republic | % | 10.3 | ... | ... | ... | |
| Denmark | % | 11.5 | ... | ... | ... | |
| Estonia | % | 19.9 | ... | ... | ... | |
| Finland | % | 35.0 | ... | ... | ... | |
| France | % | 4.40 | ... | ... | ... | |
| Germany | % | 6.00 | ... | ... | ... | |
| Hungary | % | ... | ... | ... | ... | |
| Italy | % | ... | ... | ... | ... | |
| Latvia | % | 11.2 | ... | ... | ... | |
| Lithuania | % | 24.4 | ... | ... | ... | |
| Luxembourg | % | ... | ... | ... | ... | |
| Malta | % | 24.1 | ... | ... | ... | |
| Netherlands | % | ... | ... | ... | ... | |
| Norway | % | 42.8 | ... | ... | ... | |
| Poland | % | 4.00 | ... | ... | ... | |
| Portugal | % | 9.20 | ... | ... | ... | |
| Slovakia | % | 34.9 | ... | ... | ... | |
| Slovenia | % | 37.7 | ... | ... | ... | |
| Spain | % | 5.00 | ... | ... | ... | |
| Sweden | % | 14.8 | ... | ... | ... | |
| Switzerland | % | ... | ... | ... | ... |
Helgi Analytics 
