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:
| Rank | Stadium | Capacity | City | Country | Tournament hosted |
| --- | --- | --- | --- | --- | --- |
| 1 | Arthur Ashe Stadium | 23200.0 | New York City | United States | US Open |
| 2 | Sinan Erdem Dome | 16410.0 | Istanbul | Turkey | WTA Championships |
| 3 | Indian Wells Tennis Garden | 16100.0 | Indian Wells, California | United States | BNP Paribas Open |
| 4= | Cullman-Heyman Tennis Center | 15000.0 | New Haven, Connecticut | United States | New Haven Open at Yale |
| 4= | National Tennis Stadium | 15000.0 | Beijing | China | China Open ; 2008 Olympics |
| 4= | Wimbledon Centre Court [a ] | 15000.0 | London | United Kingdom | The Championships, Wimbledon |
| 7 | Stade Roland Garros - Court Philippe Chatrier | 14911.0 | Paris | France | French Open |
| 8 | Rod Laver Arena | 14820.0 | Melbourne | Australia | Australian Open |
| 9 | Armeets Arena | 13545.0 | Sofia | Bulgaria | WTA Tournament of Champions (2012–13) |
| 10 | Tennis Center at Crandon Park | 13300.0 | Key Biscayne, Florida | United States | Sony Ericsson Open |
| 10= | Rexall Centre | 12500.0 | Toronto | Canada | Rogers Cup |
| 10= | Caja Mágica, Estadio Manolo Santana | 12500.0 | Madrid | Spain | Madrid Masters |
| 10= | Foro Italico, Campo Centrale | 12500.0 | Rome | Italy | Internazionali d'Italia |
| 13 | Petersburg Sports and Concert Complex | 12000.0 | St. Petersburg | Russia | St. Petersburg Open |
| 14 | Uniprix Stadium | 11700.0 | Montreal | Canada | Rogers Cup |
| 15 | Wimbledon No. 1 Court | 11429.0 | London | United Kingdom | The Championships, Wimbledon |
| 16= | Olympic Stadium | 11400.0 | Moscow | Russia | Kremlin Cup |
| 16= | Lindner Family Tennis Center | 11400.0 | Mason, Ohio | United States | W&SFG Masters |
| 18= | Hisense Arena | 10500.0 | Melbourne | Australia | Australian Open |
| 18= | Ken Rosewall Arena | 10500.0 | Sydney | Australia | Medibank International ; 2000 Olympics |
| 20= | Family Circle Tennis Center | 10200.0 | Charleston, South Carolina | United States | Family Circle Cup |
| 20= | Louis Armstrong Stadium | 10200.0 | New York City | United States | US Open |
| 22 | Stade Roland Garros - Court Suzanne Lenglen | 10076.0 | Paris | France | French Open |
| 23= | Seoul Olympic Park Tennis Center | 10000.0 | Seoul | South Korea | 1988 Olympics ; Hansol Korea Open |
| 23= | Lotus Court | 10000.0 | Beijing | China | China Open ; 2008 Olympics |
| 23= | Estoril Court Central | 10000.0 | Oeiras | Portugal | Estoril Open |
| 23= | Tokyo Metropolitan Gymnasium | 10000.0 | Tokyo | Japan | Toray Pan Pacific Open |
| 27 | Ariake Coliseum | 9000.0 | Tokyo | Japan | Japan Open Tennis Championships |
| 28 | Devonshire Park Lawn Tennis Club | 8000.0 | Eastbourne | United Kingdom | Eastbourne International |
| 29 | Steffi-Graf-Stadion | 7000.0 | Berlin | Germany | Qatar Telecom German Open |
| 30 | Khalifa International Tennis and Squash Complex | 6911.0 | Doha | Qatar | Qatar Ladies Open |
| 31 | Porsche Arena | 6100.0 | Stuttgart | Germany | Porsche Tennis Grand Prix |
| 32 = | Fairmont Acapulco Princess | 6000.0 | Acapulco | Mexico | Abierto Mexicano Telcel |
| 32 = | Margaret Court Arena | 6000.0 | Melbourne | Australia | Australian Open |
| 32= | Roy Emerson Arena | 6000.0 | Gstaad | Switzerland | Allianz Suisse Open Gstaad |
| 32= | Grandstand Stadium | 6000.0 | New York City | United States | US Open |
| 36 | Intersport Arena | 5699.0 | Linz | Austria | Generali Ladies Linz |
| 37 | Pat Rafter Arena | 5500.0 | Brisbane | Australia | Brisbane International |
| 38 | Racquet Club of Memphis | 5200.0 | Memphis, Tennessee | United States | Cellular South Cup |
| 39= | Guangzhou International Tennis Center | 5000.0 | Guangzhou | China | Guangzhou International Women's Open |
| 39= | Dubai Tennis Stadium | 5000.0 | Dubai | United Arab Emirates | Dubai Tennis Championships |
| 39= | Kungliga Tennishallen | 5000.0 | Stockholm | Sweden | Stockholm Open |
| 39= | Båstad Tennis Stadium | 5000.0 | Båstad | Sweden | Swedish Open |
| 39= | Sportlokaal Bokkeduinen | 5000.0 | Amersfoort | Netherlands | Dutch Open Amersfoort |
| 43= | Moon Court | 4000.0 | Beijing | China | China Open |
| 43= | Wimbledon No. 2 Court | 4000.0 | London | United Kingdom | The Championships, Wimbledon |
| 45 | Roland Garros No. 1 Court | 3805.0 | Paris | France | French Open |
| 46 | Darling Tennis Center | 3500.0 | Las Vegas, Nevada | United States | Tennis Channel Open |
| 47 | ASB Centre | 3200.0 | Auckland | New Zealand | ASB Classic |
| 48= | Baku Tennis Academy Central Court | 3000.0 | Baku | Azerbaijan | Baku Cup |
| 48= | Australia Show Court 2 | 3000.0 | Melbourne | Australia | Australian Open |
| 48= | Australia Show Court 3 | 3000.0 | Melbourne | Australia | Australian Open |
| 48= | Római Teniszakadémia | 3000.0 | Budapest | Hungary | Budapest Grand Prix |
| 48= | Court 17 | 3000.0 | New York | United States | US Open |
| 53 | Hobart International Tennis Centre | 2500.0 | Hobart | Australia | Hobart International |
| 54= | National Tennis Center Court 1 | 2000.0 | Beijing | China | China Open |
| 54= | Wimbledon No. 3 Court | 2000.0 | London | United Kingdom | The Championships, Wimbledon |
Question:
What is the average capacity that has switzerland as the country?
Answer:
6000.0