Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Party | Seats | Net gain/loss | % of seats | % of votes |
| --- | --- | --- | --- | --- |
| National Coalition Party | 44 | −6 | 22.0 | 20.4 |
| Social Democratic Party | 42 | -3 | 21.0 | 19.1 |
| True Finns | 39 | +34 | 19.5 | 19.1 |
| Centre Party | 35 | -16 | 17.5 | 15.8 |
| Left Alliance | 14 | -2 | 7.0 | 8.1 |
| Green League | 10 | -5 | 5.0 | 7.3 |
| Swedish People's Party | 9 | 0 | 4.5 | 4.3 |
| Christian Democrats | 6 | -1 | 3.0 | 4.0 |
| Others | 1 a | 0 | 0.5 | 0.4 |
| a Province of Åland 's representative. | a Province of Åland 's representative. | a Province of Åland 's representative. | a Province of Åland 's representative. | a Province of Åland 's representative. |
Question:
When the Swedish People's Party had a net gain/loss of 0, how many seats did they have?
Answer:
9.0