Explain one likely reason for Germany's balance of trade in goods and services over the period shown. Refer to the table and chart below in your answer.
Figure 3: Germany's net monthly balance of trade in goods and services, January 2018 to January 2022

| Year | Net Balance (EUR billions) |
|---|---|
| Jan 2018 | +14.5 |
| Jan 2019 | +16.2 |
| Jan 2020 | +15.1 |
| Jan 2021 | +17.8 |
| Jan 2022 | +12.5 |