| Year | Value (billion cubic meters per year) |
|---|---|
|
2022 |
71.8 |
|
2021 |
72 |
|
2020 |
72.2 |
|
2019 |
72.3 |
|
2018 |
72.4 |
|
2017 |
72.6 |
|
2016 |
72.8 |
|
2015 |
73 |
|
2014 |
73.2 |
|
2013 |
73.4 |