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:
| Coaster Name | Park | Location | Track | Builder | Year Opened |
| --- | --- | --- | --- | --- | --- |
| American Eagle | Six Flags Great America | Gurnee, Illinois | Wooden | Intamin | 1981 |
| Batman & Robin: The Chiller | Six Flags Great Adventure | Jackson, New Jersey | Steel | Premier Rides | 1997 |
| Battlestar Galactica | Universal Studios Singapore | Sentosa , Singapore | Steel | Vekoma | 2010 |
| Colossus | Six Flags Magic Mountain | Valencia, California | Wooden | International Amusement Devices | 1978 |
| Dauling Dragon | Happy Valley, Wuhan | Hubei , China | Wooden | Martin & Vleminckx | 2012 |
| Dragon Challenge | Islands of Adventure | Orlando, Florida | Steel | Bolliger & Mabillard | 1999 |
| Gemini | Cedar Point | Sandusky, Ohio | Steel | Arrow Dynamics | 1978 |
| Grand National | Blackpool Pleasure Beach | Blackpool, Lancashire | Wooden | Charles Paige | 1935 |
| Gwazi | Busch Gardens Tampa Bay | Tampa, Florida | Wooden | Great Coasters International | 1999 |
| Joris en de Draak | Efteling | Kaatsheuvel | Wooden | Great Coasters International | 2010 |
| Lightning Racer | Hersheypark | Hershey, Pennsylvania | Wooden | Great Coasters International | 2000 |
| Matterhorn Bobsleds | Disneyland | Anaheim, California | Steel | Arrow Dynamics | 1959 |
| Milky Way | Mitsui Greenland | Arao, Kumamoto | Steel | Senyo Kogyo Co., Ltd. | 1991 |
| Le Monstre | La Ronde | Montréal, Québec | Wooden | William Cobb & Associates | 1985/86 |
| Montaña Rusa | La Feria Chapultepec Magico | Mexico City | Wooden | National Amusement Device Company | 1964 |
| The Racer | Kings Island | Mason, Ohio | Wooden | Philadelphia Toboggan Coasters | 1972 |
| Racer | Kennywood | West Mifflin, Pennsylvania | Wooden | Charile Mach | 1927 |
| Ramses | Parque de Atracciones de Zaragoza | Zaragoza, Zaragoza | Steel | Safeco | 2002 |
| Rebel Yell | Kings Dominion | Doswell, Virginia | Wooden | Philadelphia Toboggan Coasters | 1975 |
| Rolling Thunder | Six Flags Great Adventure | Jackson, New Jersey | Wooden | William Cobb & Associates | 1979 |
| Stampida | PortAventura | Salou, Tarragona | Wooden | Custom Coasters International | 1997 |
| Space Mountain | Magic Kingdom | Lake Buena Vista, Florida | Steel | Arrow Dynamics | 1975 |
| Thunder Road | Carowinds | Charlotte, North Carolina | Wooden | Philadelphia Toboggan Coasters | 1976 |
| Twisted Twins | Kentucky Kingdom | Louisville, Kentucky | Wooden | Custom Coasters International | 1998 |
| Vertigorama | Parque de la Ciudad | Buenos Aires City | Steel | Intamin | 1983 |
| Vleermuis | Plopsaland | De Panne , West Flanders | Steel | Caripro | 2000 |
| Windjammer Surf Racers | Knott's Berry Farm | Buena Park, California | Steel | TOGO | 1997 |
Question:
Which year opened is located in west mifflin, pennsylvania?
Answer:
1927.0