| Characteristic | 2017 | 2018 | 2019 | 2020 |
|---|---|---|---|---|
| - | - | - | - | - |
| - | - | - | - | - |
| - | - | - | - | - |
| - | - | - | - | - |
| - | - | - | - | - |
| - | - | - | - | - |
| - | - | - | - | - |
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Source
Release date
April 2020
Region
Worldwide
Survey time period
2017 to 2020
Supplementary notes
All values taken from the first quarter of the relevant year.
Values prior to 2019 taken from the previous report, available here.
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