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:
| Leader | Party | Leader's Seat | Number of Seats | Leader since |
| --- | --- | --- | --- | --- |
| Timothy Kirkhope | Conservative Party | Yorkshire and the Humber | 26.0 | 2008 |
| Nigel Farage | UK Independence Party | South East England | 13.0 | 1999 |
| Glenis Willmott | Labour Party | East Midlands | 13.0 | January 2009 |
| Fiona Hall | Liberal Democrats | North East England | 11.0 | 2009 |
| None | Green Party of England and Wales | N/A | 2.0 | N/A |
| Nick Griffin | British National Party | North West England | 2.0 | 2009 |
| Ian Hudghton | Scottish National Party | Scotland | 2.0 | 1998 |
| Jillian Evans | Plaid Cymru | Wales | 1.0 | 2009 |
| Bairbre de Brún | Sinn Féin | Northern Ireland | 1.0 | 2004 |
| Diane Dodds | Democratic Unionist Party | Northern Ireland | 1.0 | 2009 |
| Jim Nicholson | Ulster Conservatives and Unionists | Northern Ireland | 1.0 | 1998 |
Question:
What is Jillian Evans highest number of seats?
Answer:
1.0