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 | Pick | Player name | College | Position |
| --- | --- | --- | --- | --- |
| 1960.0 | — | Abner Haynes | North Texas State | RB |
| 1961.0 | — | E.J. Holub | Texas Tech | C |
| 1962.0 | — | Ronnie Bull | Baylor | RB |
| 1963.0 | — | Buck Buchanan | Grambling | DT |
| 1963.0 | — | Ed Budde | Michigan State | OT |
| 1964.0 | — | Pete Beathard | Southern California | QB |
| 1965.0 | — | Gale Sayers | Kansas | RB |
| 1966.0 | — | Aaron Brown | Minnesota | DE |
| 1967.0 | 24 | Gene Trosch | Miami | DT |
| 1968.0 | 19 | Mo Moorman | Texas A&M | G |
| 1968.0 | 22 | George Daney | Texas-El Paso | G |
| 1969.0 | 23 | Jim Marsalis | Tennessee State | CB |
| 1970.0 | 26 | Sid Smith | Southern California | OT |
| 1971.0 | 16 | Elmo Wright | Houston | WR |
| 1972.0 | 23 | Jeff Kinney | Nebraska | RB |
| 1973.0 | — | — No pick | — | — |
| 1974.0 | 16 | Woody Green | Arizona State | RB |
| 1975.0 | — | — No pick | — | — |
| 1976.0 | 14 | Wayne Walters | Iowa | G |
| 1977.0 | 10 | Gary Green | Baylor | CB |
| 1978.0 | 2 | Art Still | Kentucky | DE |
| 1979.0 | 2 | Mike Bell | Colorado State | DE |
| 1979.0 | 23 | Steve Fuller | Clemson | QB |
| 1980.0 | 11 | Brad Budde | Southern California | G |
| 1981.0 | 14 | Willie Scott | South Carolina | TE |
| 1982.0 | 11 | Anthony Hancock | Tennessee | WR |
| 1983.0 | 7 | Todd Blackledge | Penn State | QB |
| 1984.0 | 5 | Bill Maas | Pittsburgh | DT |
| 1984.0 | 21 | John Alt | Iowa | OT |
| 1985.0 | 15 | Ethan Horton | North Carolina | RB |
| 1986.0 | 7 | Brian Jozwiak | West Virginia | OT |
| 1987.0 | 19 | Paul Palmer | Temple | RB |
| 1988.0 | 2 | Neil Smith | Nebraska | DE |
| 1989.0 | 4 | Derrick Thomas | Alabama | LB |
| 1990.0 | 13 | Percy Snow | Michigan State | LB |
| 1991.0 | 21 | Harvey Williams | Louisiana State | RB |
| 1992.0 | 20 | Dale Carter | Tennessee | CB |
| 1993.0 | — | — No pick | — | — |
| 1994.0 | 25 | Greg Hill | Texas A&M | RB |
| 1995.0 | 31 | Trezelle Jenkins | Michigan | OT |
| 1996.0 | 28 | Jerome Woods | Memphis | SS |
| 1997.0 | 13 | Tony Gonzalez | California | TE |
| 1998.0 | 27 | Victor Riley | Auburn | OT |
| 1999.0 | 14 | John Tait | Brigham Young | OT |
| 2000.0 | 21 | Sylvester Morris | Jackson State | WR |
| 2001.0 | — | — No pick | — | — |
| 2002.0 | 6 | Ryan Sims | North Carolina | DT |
| 2003.0 | 27 | Larry Johnson | Penn State | RB |
| 2004.0 | — | — No pick | — | — |
| 2005.0 | 15 | Derrick Johnson | Texas | LB |
| 2006.0 | 20 | Tamba Hali | Penn State | DE |
| 2007.0 | 23 | Dwayne Bowe | Louisiana State | WR |
| 2008.0 | 5 | Glenn Dorsey | Louisiana State | DT |
| 2008.0 | 15 | Branden Albert | Virginia | G |
| 2009.0 | 3 | Tyson Jackson | Louisiana State | DE |
| 2010.0 | 5 | Eric Berry | Tennessee | S |
| 2011.0 | 26 | Jonathan Baldwin | Pittsburgh | WR |
| 2012.0 | 11 | Dontari Poe | Memphis | NT |
| 2013.0 | 1 | Eric Fisher | Central Michigan | OT |
Question:
Which lowest year has a Position of rb, and a College of louisiana state?
Answer:
1991.0