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:
| Tournament | Player | Nationality | Team | Games played | Goals conceded | Coefficient |
| --- | --- | --- | --- | --- | --- | --- |
| 2008 Apertura | Gastón Sessa (1) | Argentine | Gimnasia (La Plata) (1) | 17.0 | 14.0 | 0.82 |
| 2009 Clausura | Germán Montoya (1) | Argentine | Vélez Sársfield (1) | 19.0 | 13.0 | 0.68 |
| 2009 Apertura | Cristian Lucchetti (1) | Argentine | Banfield (1) | 17.0 | 9.0 | 0.53 |
| 2010 Clausura | Nelson Ibáñez (1) | Argentine | Godoy Cruz (1) | 19.0 | 14.0 | 0.74 |
| 2010 Apertura | Marcelo Barovero (1) | Argentine | Vélez Sársfield (2) | 16.0 | 6.0 | 0.38 |
| 2011 Clausura | Marcelo Barovero (2) | Argentine | Vélez Sársfield (3) | 19.0 | 17.0 | 0.89 |
| 2011 Apertura | Agustín Orión (1) | Argentine | Boca Juniors (1) | 19.0 | 6.0 | 0.31 |
| 2012 Clausura | Nicolás Cambiasso (1) | Argentine | All Boys (1) | 18.0 | 11.0 | 0.61 |
| 2012 Inicial | Agustín Marchesín (1) | Argentine | Lanús (1) | 19.0 | 10.0 | 0.49 |
Question:
How many nationalities are there for the 2011 apertura?
Answer:
1.0