| Characteristic | Number of deliveries |
|---|---|
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
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Sources
Release date
May 2019
Region
Worldwide
Survey time period
2016 to 2018
Supplementary notes
The figures for 2019 and beyond are projections.
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