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:
| Year | Network | Lap-by-lap | Color commentator(s) | Pit reporters | Host | Ratings | Viewers |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1979.0 | CBS | Ken Squier | David Hobbs | Ned Jarrett Brock Yates | Ken Squier | 10.5/29 | 15.1 million |
| 1980.0 | CBS | Ken Squier | David Hobbs | Ned Jarrett Brock Yates | Ken Squier | 8.0/21 | 10.8 million |
| 1981.0 | CBS | Ken Squier | David Hobbs | Ned Jarrett Brock Yates | Ken Squier | 8.4/26 | 11.2 million |
| 1982.0 | CBS | Ken Squier | David Hobbs | Ned Jarrett Larry Nuber | Brock Yates | 9.4/27 | 11.8 million |
| 1983.0 | CBS | Ken Squier | David Hobbs | Ned Jarrett Larry Nuber | Ken Squier | 8.7/26 | 11.0 million |
| 1984.0 | CBS | Ken Squier | David Hobbs | Ned Jarrett Chris Economaki Mike Joy | Chris Economaki | 8.7/23 | 12.3 million |
| 1985.0 | CBS | Ken Squier | David Hobbs Ned Jarrett | Chris Economaki Mike Joy | Chris Economaki | 8.3/23 | 9.8 million |
| 1986.0 | CBS | Ken Squier | David Hobbs Ned Jarrett | Chris Economaki Mike Joy | Chris Economaki | 8.4/22 | 10.3 million |
| 1987.0 | CBS | Ken Squier | David Hobbs Ned Jarrett | Chris Economaki Mike Joy Dave Despain | Chris Economaki | 9.4/26 | 12.4 million |
| 1988.0 | CBS | Ken Squier | Ned Jarrett Chris Economaki | Mike Joy Dave Despain David Hobbs | Chris Economaki | 7.4/18 | 10.0 million |
| 1989.0 | CBS | Ken Squier | Ned Jarrett Chris Economaki | Mike Joy Dave Despain David Hobbs | Chris Economaki | 8.1/21 | 12.0 million |
| 1990.0 | CBS | Ken Squier | Ned Jarrett Chris Economaki | Mike Joy Dave Despain David Hobbs | Chris Economaki | 7.3/20 | 10.5 million |
| 1991.0 | CBS | Ken Squier | Ned Jarrett David Hobbs | Mike Joy Dave Despain Chris Economaki | Chris Economaki | 7.6/20 | 10.9 million |
| 1992.0 | CBS | Ken Squier | Ned Jarrett Neil Bonnett | Mike Joy David Hobbs Chris Economaki | Chris Economaki | 9.2/25 | 13.4 million |
| 1993.0 | CBS | Ken Squier | Ned Jarrett Neil Bonnett | Mike Joy David Hobbs Chris Economaki | Chris Economaki | 8.4/23 | 12.7 million |
| 1994.0 | CBS | Ken Squier | Ned Jarrett Chris Economaki | Mike Joy David Hobbs Dick Berggren | Chris Economaki | 9.6/26 | 13.6 million |
| 1995.0 | CBS | Ken Squier | Ned Jarrett Richard Petty | Mike Joy David Hobbs Dick Berggren | Ken Squier | 7.8/20 | 11.4 million |
| 1996.0 | CBS | Ken Squier | Ned Jarrett Buddy Baker | Mike Joy David Hobbs Dick Berggren | Ken Squier | 9.2/24 | 13.9 million |
| 1997.0 | CBS | Ken Squier | Ned Jarrett Buddy Baker | Mike Joy Dick Berggren Ralph Sheheen | Ken Squier | 8.6/23 | 12.8 million |
| 1998.0 | CBS | Mike Joy | Ned Jarrett Buddy Baker | Dick Berggren Ralph Sheheen Bill Stephens | Ken Squier | 8.6/23 | 13.0 million |
| 1999.0 | CBS | Mike Joy | Ned Jarrett Buddy Baker | Dick Berggren Ralph Sheheen Bill Stephens | Greg Gumbel Ken Squier | 9.6/25 | 12.9 million |
| 2000.0 | CBS | Mike Joy | Ned Jarrett Buddy Baker | Dick Berggren Ralph Sheheen Bill Stephens | Ken Squier | 8.4/22 | 12.9 million |
Question:
Who was the network who had Ken Squier as a host and 13.9 million viewers?
Answer:
CBS