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:
| Outcome | Date | Tournament | Surface | Partner | Opponents in the final | Score in the final |
| --- | --- | --- | --- | --- | --- | --- |
| Runner-up | 21 July 2003 | Umag, Croatia | Clay | Thomas Shimada | Álex López Morón Rafael Nadal | 1–6, 3–6 |
| Winner | 8 September 2003 | Costa do Sauipe , Brazil | Hard | Thomas Shimada | Scott Humphries Mark Merklein | 6–2, 6–4 |
| Runner-up | 11 July 2004 | Båstad, Sweden | Clay | Simon Aspelin | Mahesh Bhupathi Jonas Björkman | 6–4, 6–7 (2–7) , 6–7 (6–8) |
| Runner-up | 17 July 2004 | Stuttgart, Germany | Clay | Simon Aspelin | Jiří Novák Radek Štěpánek | 2–6, 4–6 |
| Runner-up | 9 January 2005 | Adelaide, Australia | Hard | Simon Aspelin | Xavier Malisse Olivier Rochus | 6–7 (5–7) , 4–6 |
| Runner-up | 17 January 2005 | Auckland, New Zealand | Hard | Simon Aspelin | Yves Allegro Michael Kohlmann | 4–6, 6–7 (4–7) |
| Winner | 31 January 2005 | Delray Beach , United States | Hard | Simon Aspelin | Jordan Kerr Jim Thomas | 6–3, 6–3 |
| Winner | 14 February 2005 | Memphis , United States | Hard | Simon Aspelin | Bob Bryan Mike Bryan | 6–4, 6–4 |
| Runner-up | 20 June 2005 | Nottingham, UK | Grass | Simon Aspelin | Jonathan Erlich Andy Ram | 6–4, 3–6, 5–7 |
| Runner-up | 25 July 2005 | Indianapolis, US | Hard | Simon Aspelin | Paul Hanley Graydon Oliver | 2–6, 1–3 ret. |
| Runner-up | 10 October 2005 | Tokyo, Japan | Hard | Simon Aspelin | Satoshi Iwabuchi Takao Suzuki | 4–5, 4–5 |
| Runner-up | 14 January 2006 | Auckland, New Zealand | Hard | Simon Aspelin | Andrei Pavel Rogier Wassen | 2–6, 7–5, [4–10] |
| Winner | 23 October 2006 | St. Petersburg , Russia | Carpet | Simon Aspelin | Julian Knowle Jürgen Melzer | 6–1, 7–6 (7–3) |
| Winner | 1 January 2007 | Adelaide , Australia | Hard | Wesley Moodie | Novak Djokovic Radek Štěpánek | 6–4, 3–6, [15–13] |
| Winner | 16 April 2007 | Valencia , Spain | Clay | Wesley Moodie | Yves Allegro Sebastián Prieto | 7–5, 7–5 |
| Runner-up | 22 October 2007 | St. Petersburg, Russia | Carpet | Jürgen Melzer | Daniel Nestor Nenad Zimonjić | 1–6, 6–7 (3–7) |
| Runner-up | 18 May 2008 | Casablanca, Morocco | Clay | James Cerretani | Albert Montañés Santiago Ventura | 1–6, 2–6 |
Question:
Tell me the surface for 16 april 2007
Answer:
Clay