The table below shows the Gross National Income (GNI) of Astoria over a four-year period.
| Year | Gross National Income (£ billion) |
|---|---|
| 2020 | 2 400 |
| 2021 | 2 450 |
| 2022 | 2 380 |
| 2023 | 2 646 |
Which one of the following represents the ratio of Gross National Income in 2021 to Gross National Income in 2023?
1:0.931 : 0.931:0.93
1:1.081 : 1.081:1.08
1:1.101 : 1.101:1.10
1:1.111 : 1.111:1.11