Figure 1a shows the amount of money spent by international tourists visiting Iceland and also the expenditure of Icelandic residents travelling to other countries, 2017–2019.
| Year | Expenditure by tourists to Iceland (million €) | Expenditure by tourists from Iceland (million €) |
|---|---|---|
| 2017 | 1,850 | 420 |
| 2018 | 2,100 | 480 |
| 2019 | 2,250 | 510 |
With reference to the data in Figure 1a, compare the trends in expenditure by tourists to Iceland with tourists from Iceland.
