| Country | China | Poland | Italy | Sweden | Lithuania | Germany | Others* |
|---|---|---|---|---|---|---|---|
| - | - | - | - | - | - | - | - |
| - | - | - | - | - | - | - | - |
| - | - | - | - | - | - | - | - |
| - | - | - | - | - | - | - | - |
| - | - | - | - | - | - | - | - |
| - | - | - | - | - | - | - | - |
| - | - | - | - | - | - | - | - |
The chart is not accessible to screen readers. Please switch to the table view to access the data.
Download
Source
Release date
April 2019
Region
Worldwide
Survey time period
2012 - 2018
Supplementary notes
* Category added in 2016. Germany was added in 2018.
The data do not add up to 100 percent due to rounding.
Data prior to 2018 can be found in previous publications from the same source.
Citation formats









