Show data table
| 2014 | 19.4% | 2019 | 23% | 2024 | 21.6% |
| 2015 | 19.4% | 2020 | 20.8% | 2025 | 22.5% |
| 2016 | 19.1% | 2021 | 21% | 2026 | 22.2% |
| 2017 | 20.8% | 2022 | 22.4% | | |
| 2018 | 22.2% | 2023 | 22.5% | | |
Show data table
| 2014 | 19.9B | 2019 | 24.1B | 2024 | 27.1B |
| 2015 | 20.1B | 2020 | 21.5B | 2025 | 28.5B |
| 2016 | 20B | 2021 | 22.3B | 2026 | 28.6B |
| 2017 | 21.5B | 2022 | 25.5B | | |
| 2018 | 22.4B | 2023 | 26.6B | | |
Show data table
| 2014 | 22.5% | 2019 | 21.1% | 2024 | 22.1% |
| 2015 | 21.5% | 2020 | 21.4% | 2025 | 22.9% |
| 2016 | 21% | 2021 | 21.2% | 2026 | 22.5% |
| 2017 | 21.9% | 2022 | 20.6% | | |
| 2018 | 22.1% | 2023 | 22.2% | | |
Show data table
| 2014 | 23.1B | 2019 | 22.1B | 2024 | 27.8B |
| 2015 | 22.2B | 2020 | 22B | 2025 | 29B |
| 2016 | 21.9B | 2021 | 22.6B | 2026 | 29.1B |
| 2017 | 22.7B | 2022 | 23.4B | | |
| 2018 | 22.3B | 2023 | 26.2B | | |