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 | Date | Winner | Make | Pole | Make | Results |
| --- | --- | --- | --- | --- | --- | --- |
| 1970 | October 4 | Dave Sorg | Mercury | Ron North | Oldsmobile | Report |
| 1971 | October 3 | Denny Miles | Chevrolet | Les Snow | Plymouth | Report |
| 1972 | October 1 | Dave Sorg | Chevrolet | Larry Moore | Chevrolet | Report |
| 1973 | September 30 | Vern Schrock | Pontiac | Ed VanderLaan | Chevrolet | Report |
| 1974 | September 29 | Bob Senneker | Chevrolet | Vern Schrock | Chevrolet | Report |
| 1975 | September 28 | Bob Senneker | Chevrolet | Larry Moore | Chevrolet | Report |
| 1976 | October 4 | Bob Senneker | Chevrolet | Bob Senneker | Chevrolet | Report |
| 1977 | October 2 | Bob Senneker | Chevrolet | Bob Senneker | Chevrolet | Report |
| 1978 | October 1 | Bob Senneker | Chevrolet | Bob Sensiba | Chevrolet | Report |
| 1979 | October 7 | Don Gregory | Oldsmobile | Randy Sweet | Chevrolet | Report |
| 1980 | October 5 | Terry Senneker | Chevrolet | Mark Martin | Chevrolet | Report |
| 1981 | October 4 | Mike Eddy | Chevrolet | Mark Martin | Chevrolet | Report |
| 1982 | October 3 | Rusty Wallace | Chevrolet | Bob Strait | Pontiac | Report |
| 1983 | October 2 | Mike Eddy | Pontiac | Dick Trickle | Pontiac | Report |
| 1984 | September 30 | Bob Senneker | Pontiac | Dick Trickle | Pontiac | Report |
| 1985 | September 29 | Mark Martin | Ford | Mark Martin | Ford | Report |
| 1986 | October 5 | Mark Martin | Ford | Mark Martin | Pontiac | Report |
| 1987 | October 4 | Butch Miller | Chevrolet | Butch Miller | Chevrolet | Report |
| 1988 | October 2 | Ted Musgrave | Chevrolet | Butch Miller | Chevrolet | Report |
| 1989 | October 1 | Butch Miller | Chevrolet | Kenny Wallace | Pontiac | Report |
| 1990 | September 30 | Bob Senneker | Chevrolet | Dave Jackson | Chevrolet | Report |
| 1991 | October 6 | Glenn Allen, Jr. | Chevrolet | Mike Eddy | Pontiac | Report |
| 1992 | October 4 | Tim Steele | Chevrolet | Mike Garvey | Ford | Report |
| 1993 | October 3 | Mike Cope | Oldsmobile | Hal Goodson | Ford | Report |
| 1994 | October 2 | Mike Cope | Oldsmobile | Toby Porter | Oldsmobile | Report |
| 1995 | October 1 | Mike Cope | Chevrolet | Ron Barfield, Jr. | Ford | Report |
| 1996 | September 29 | Scot Walters | Chevrolet | Wayne Anderson | Chevrolet | Report |
| 1997 | September 28 | Hank Parker, Jr. | Chevrolet | Nipper Alsup | Chevrolet | Report |
| 1998 | September 27 | Derrick Gilchrist | Chevrolet | Jeff Fultz | Chevrolet | Report |
| 1999 | September 26 | Brian Ross | Chevrolet | Matt Hagans | Ford | Report |
| 2000 | October 1 | Gary St. Amant | Chevrolet | Larry Foyt | Pontiac | Report |
| 2001 | September 23 | Joey Clanton | Chevrolet | David Stremme | Ford | Report |
| 2002 | October 6 | Gary St. Amant | Chevrolet | David Stremme | Chevrolet | Report |
| 2003 | October 5 | Bobby Parsley | Chevrolet | Dave Jackson | Chevrolet | Report |
| 2004 | not held |  |  |  |  |  |
| 2005 | not held |  |  |  |  |  |
| 2006 | October 15 | Scott Hantz | Chevrolet | Danny Jackson |  | Report |
| 2007 | October 14 | Ryan Lawler | Ford | Ryan Lawler | Ford | Report |
| 2008 | October 12 | David Stremme | Dodge | Chris Gabehart |  | Report |
| 2009 | October 18 | Kyle Busch | Toyota | Chris Gabehart |  | Report |
| 2010 | October 17 | Chase Elliott | Ford | Johnny VanDoorn |  | Report |
| 2011 | October 15 | Boris Jurkovic | Toyota | Derrick Griffin | Toyota | Report |
| 2012 | October 14 | Ross Kenseth | Ford | Rick Turner | Ford | Report |
| 2013 | October 13 | Erik Jones | Toyota | Chase Elliott | Chevrolet | Report |
Question:
which make was used the least?
Answer:
Mercury