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 | Opponent | Score |
| --- | --- | --- | --- | --- | --- |
| Runner-up | 13 November 1995 | Buenos Aires | Clay | Carlos Moyá | 0–6, 3–6 |
| Runner-up | 26 May 1996 | St. Pölten | Clay | Marcelo Ríos | 2–6, 4–6 |
| Winner | 10 June 1996 | Oporto | Clay | Hernán Gumy | 6–7 (5–7) , 6–4, 6–3 |
| Runner-up | 14 July 1996 | Gstaad | Clay | Albert Costa | 6–4, 6–7 (2–7) , 1–6, 0–6 |
| Runner-up | 11 August 1996 | San Marino | Clay | Albert Costa | 6–7 (7–9) , 3–6 |
| Runner-up | 18 August 1996 | Umag | Clay | Carlos Moyá | 0–6, 6–7 (4–7) |
| Runner-up | 12 May 1997 | Hamburg | Clay | Andrei Medvedev | 0–6, 4–6, 2–6 |
| Winner | 9 June 1997 | Bologna | Clay | Gustavo Kuerten | 4–6, 6–2, 6–1 |
| Winner | 7 July 1997 | Gstaad | Clay | Juan Albert Viloca | 6–1, 6–4, 6–4 |
| Winner | 21 July 1997 | Umag | Clay | Sergi Bruguera | 6–3, 7–5 |
| Winner | 4 August 1997 | San Marino | Clay | Magnus Gustafsson | 6–4, 6–1 |
| Winner | 8 September 1997 | Bournemouth | Clay | Carlos Moyà | 6–2, 6–2 |
| Runner-up | 15 February 1998 | Dubai | Hard | Àlex Corretja | 6–7 (0–7) , 1–6 |
| Runner-up | 30 August 1998 | Long Island | Hard | Patrick Rafter | 6–7 (3–7) , 2–6 |
| Winner | 14 September 1998 | Bournemouth | Clay | Albert Costa | 6–3, 7–5 |
| Winner | 12 April 1999 | Barcelona | Clay | Karim Alami | 7–6 (7–2) , 6–3, 6–3 |
| Runner-up | 15 April 2001 | Estoril | Clay | Juan Carlos Ferrero | 6–7 (3–7) , 6–4, 3–6 |
| Winner | 24 September 2001 | Palermo | Clay | David Nalbandian | 7–6 (7–2) , 6–4 |
| Runner-up | 6 January 2002 | Doha | Hard | Younes El Aynaoui | 6–4, 2–6, 2–6 |
| Runner-up | 18 August 2002 | Indianapolis | Hard | Greg Rusedski | 7–6 (8–6) , 4–6, 4–6 |
| Winner | 5 May 2003 | Rome | Clay | Roger Federer | 7–5, 6–2, 7–6 (10–8) |
Question:
What is the surface on 26 May 1996?
Answer:
Clay