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:
| Institution | Location | Founded | Affiliation | Enrollment | Team Nickname | Primary conference |
| --- | --- | --- | --- | --- | --- | --- |
| Aquinas College | Grand Rapids, Michigan | 1886.0 | Private | 2159.0 | Saints | WHAC ( NAIA ) |
| Butler University | Indianapolis, Indiana | 1855.0 | Private | 4512.0 | Bulldogs | Horizon ( Division I ) |
| Carnegie Mellon University | Pittsburgh, Pennsylvania | 1900.0 | Private/ Nonsectarian | 10875.0 | Tartans | UAA ( Division III ) |
| University of Dayton | Dayton, Ohio | 1850.0 | Private/Catholic | 10569.0 | Flyers | Atlantic 10 ( Division I ) |
| Ferris State University | Big Rapids, Michigan | 1884.0 | Public | 13865.0 | Bulldogs | GLIAC ( Division II ) |
| Grand Valley State University | Allendale, Michigan | 1960.0 | Public | 24408.0 | Lakers | GLIAC ( Division II ) |
| Grove City College | Grove City, Pennsylvania | 1876.0 | Private/ Christian | 2500.0 | Wolverines | PAC ( Division III ) |
| Indiana Institute of Technology | Fort Wayne, Indiana | 1930.0 | Private | 3207.0 | Warriors | WHAC ( NAIA ) |
| John Carroll University | University Heights, Ohio | 1886.0 | Private/ Catholic | 3709.0 | Blue Streaks | OAC ( Division III ) |
| Lawrence Technological University | Southfield, MI | 1932.0 | Private | 4000.0 | Blue Devils | WHAC ( NAIA ) |
| Lourdes College | Sylvania, OH | 1958.0 | Private/ Catholic | 2616.0 | Gray Wolves | WHAC ( NAIA ) |
| University of Michigan-Dearborn | Dearborn, Michigan | 1959.0 | Public | 8634.0 | Wolves | Wolverine-Hoosier ( NAIA ) |
| Northern Michigan University | Marquette, Michigan | 1899.0 | Public | 8578.0 | Wildcats | GLIAC ( Division II ) |
| Northwood University | Midland, Michigan | 1961.0 | Private | 1987.0 | Timberwolves | GLIAC ( Division II ) |
| Oakland University | Rochester, Michigan | 1957.0 | Public | 18553.0 | Grizzlies | The Summit League ( Division I ) |
| Siena Heights University | Adrian, Michigan | 1919.0 | Private/Catholic | 2274.0 | Saints | Wolverine-Hoosier ( NAIA ) |
Question:
When gray wolves is the team nickname how many institutions are there?
Answer:
1.0