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:
| Date | Event | Winner | Team | Series leader |
| --- | --- | --- | --- | --- |
| February 24 | Tour du Haut Var | Davide Rebellin ( ITA ) | Gerolsteiner | Rinaldo Nocentini ( ITA ) |
| March 23 | Cholet-Pays de Loire | Janek Tombak ( EST ) | Mitsubishi-Jartazi | Rinaldo Nocentini ( ITA ) |
| April 6 | Grand Prix de Rennes | Mikhaylo Khalilov ( UKR ) | Ceramica Flaminia-Bossini Docce | Jimmy Casper ( FRA ) |
| April 15 | Paris–Camembert | Alejandro Valverde ( ESP ) | Caisse d'Epargne | Jérôme Pineau ( FRA ) |
| April 17 | Grand Prix de Denain | Edvald Boasson Hagen ( NOR ) | Team High Road | Jimmy Casper ( FRA ) |
| April 19 | Tour du Finistère | David Lelay ( FRA ) | Bretagne-Armor Lux | Jimmy Casper ( FRA ) |
| April 20 | Tro-Bro Léon | Frédéric Guesdon ( FRA ) | Française des Jeux | Jimmy Casper ( FRA ) |
| May 4 | Trophée des Grimpeurs | David Lelay ( FRA ) | Bretagne-Armor Lux | David Lelay ( FRA ) |
| May 31 | Grand Prix de Plumelec-Morbihan | Thomas Voeckler ( FRA ) | Bouygues Télécom | David Lelay ( FRA ) |
| August 3 | Polynormande | Arnaud Gérard ( FRA ) | Française des Jeux | Jérôme Pineau ( FRA ) |
| August 31 | Châteauroux Classic | Anthony Ravard ( FRA ) | Agritubel | Jérôme Pineau ( FRA ) |
| September 21 | Grand Prix d'Isbergues | William Bonnet ( FRA ) | Crédit Agricole | Jérôme Pineau ( FRA ) |
| October 5 | Tour de Vendée | Koldo Fernández ( ESP ) | Euskaltel-Euskadi | Jérôme Pineau ( FRA ) |
| October 9 | Paris–Bourges | Bernhard Eisel ( AUT ) | Team Columbia | Jérôme Pineau ( FRA ) |
Question:
What is the Series leader with a Date that is may 31?
Answer:
David Lelay ( FRA )