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:
| Stage | Winner | General classification | Points classification | Mountains classification | Combination classification | Team classification |
| --- | --- | --- | --- | --- | --- | --- |
| 1.0 | Liquigas | Filippo Pozzato | not awarded | not awarded | not awarded | Liquigas |
| 2.0 | Alejandro Valverde | Alejandro Valverde | Alejandro Valverde | Jesús Rosendo | Egoi Martínez | Caisse d'Epargne |
| 3.0 | Tom Boonen | Daniele Bennati | Alejandro Valverde | Jesús Rosendo | Egoi Martínez | Caisse d'Epargne |
| 4.0 | Daniele Bennati | Daniele Bennati | Daniele Bennati | Jesús Rosendo | Paolo Bettini | Quick Step |
| 5.0 | Levi Leipheimer | Levi Leipheimer | Daniele Bennati | Jesús Rosendo | Egoi Martínez | Astana |
| 6.0 | Paolo Bettini | Sylvain Chavanel | Daniele Bennati | Jesús Rosendo | Paolo Bettini | Astana |
| 7.0 | Alessandro Ballan | Alessandro Ballan | Daniele Bennati | Alessandro Ballan | Alessandro Ballan | Astana |
| 8.0 | David Moncoutié | Levi Leipheimer | Alejandro Valverde | Alessandro Ballan | Alberto Contador | Astana |
| 9.0 | Greg Van Avermaet | Egoi Martínez | Alejandro Valverde | David Moncoutié | Alberto Contador | Caisse d'Epargne |
| 10.0 | Sébastien Hinault | Egoi Martínez | Greg Van Avermaet | David Moncoutié | Alberto Contador | Caisse d'Epargne |
| 11.0 | Óscar Freire | Egoi Martínez | Greg Van Avermaet | David Moncoutié | Alberto Contador | Caisse d'Epargne |
| 12.0 | Paolo Bettini | Egoi Martínez | Greg Van Avermaet | David Moncoutié | Alberto Contador | Astana |
| 13.0 | Alberto Contador | Alberto Contador | Greg Van Avermaet | David Moncoutié | Alberto Contador | Caisse d'Epargne |
| 14.0 | Alberto Contador | Alberto Contador | Alberto Contador | David Moncoutié | Alberto Contador | Caisse d'Epargne |
| 15.0 | David García | Alberto Contador | Alberto Contador | David Moncoutié | Alberto Contador | Caisse d'Epargne |
| 16.0 | Tom Boonen | Alberto Contador | Alberto Contador | David Moncoutié | Alberto Contador | Caisse d'Epargne |
| 17.0 | Wouter Weylandt | Alberto Contador | Greg Van Avermaet | David Moncoutié | Alberto Contador | Caisse d'Epargne |
| 18.0 | Imanol Erviti | Alberto Contador | Greg Van Avermaet | David Moncoutié | Alberto Contador | Caisse d'Epargne |
| 19.0 | David Arroyo | Alberto Contador | Greg Van Avermaet | David Moncoutié | Alberto Contador | Caisse d'Epargne |
| 20.0 | Levi Leipheimer | Alberto Contador | Greg Van Avermaet | David Moncoutié | Alberto Contador | Caisse d'Epargne |
| 21.0 | Matti Breschel | Alberto Contador | Greg Van Avermaet | David Moncoutié | Alberto Contador | Caisse d'Epargne |
Question:
How many stages were there where the winner and the points classification were Alberto Contador?
Answer:
1.0