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:
| Season | Skip | Third | Second | Lead |
| --- | --- | --- | --- | --- |
| 1989-90 | Jan Henri Ducroz | Spencer Mugnier | Sylvain Ducroz | Thomas Dufour |
| 1990-91 | Jan Henri Ducroz | Spencer Mugnier | Sylvain Ducroz | Thomas Dufour |
| 1991-92 | Jan Henri Ducroz | Spencer Mugnier | Sylvain Ducroz | Thomas Dufour |
| 1992-93 | Spencer Mugnier | Thomas Dufour | Sylvain Ducroz | Philippe Caux |
| 1993-94 | Spencer Mugnier | Thomas Dufour | Sylvain Ducroz | Philippe Caux |
| 1995-96 | Jan Henri Ducroz | Spencer Mugnier | Daniel Cosetto | Thomas Dufour |
| 2004-05 | Thomas Dufour | Lionel Roux | Philippe Caux | Tony Angiboust |
| 2005-06 | Thomas Dufour | Philippe Caux | Tony Angiboust | Julien Charlet |
| 2006-07 | Thomas Dufour | Tony Angiboust | Jan Henri Ducroz | Richard Ducroz |
| 2007-09 | Thomas Dufour | Tony Angiboust | Jan Henri Ducroz | Richard Ducroz |
| 2008-09 | Thomas Dufour | Tony Angiboust | Richard Ducroz (Lead for most of the season) | Jan Henri Ducroz (Second for most of the season) |
| 2009-10 | Thomas Dufour | Tony Angiboust | Jan Henri Ducroz | Richard Ducroz |
| 2010-11 | Thomas Dufour | Tony Angiboust (fourth) | Lionel Roux | Wilfrid Coulot |
Question:
What is the skip when Tony Angiboust was a lead?
Answer:
Thomas Dufour