Table:
Time

Wind

Auto

Athlete

Nationality

Location of race

Date

20.6y

Andy Stanfield

United States

Philadelphia, United States

May 26, 1951[2]

20.6

Andy Stanfield

United States

Los Angeles, United States

June 28, 1952[2]

20.6

0.0

Thane Baker

United States

Bakersfield, United States

June 23, 1956[2]

20.6

20.75

Bobby Morrow

United States

Melbourne, Australia

November 27, 1956[2]

20.6

Manfred Germar

West Germany

Wuppertal, Germany

October 1, 1958[2]

20.6y

−1.6

Ray Norton

United States

Berkeley, United States

March 19, 1960[2]

20.6

Ray Norton

United States

Philadelphia, United States

April 30, 1960[2]

20.5y

Peter Radford

United Kingdom

Wolverhampton, United Kingdom

May 28, 1960[2]

20.5

0.0

20.75

Stone Johnson

United States

Stanford, United States

July 2, 1960[2]

20.5

0.0

Ray Norton

United States

Stanford, United States

July 2, 1960[2]

20.5

20.65

Livio Berruti

Italy

Rome, Italy

September 3, 1960[2]

20.5

20.62

Livio Berruti

Italy

Rome, Italy

September 3, 1960[2]

20.5y

−1.1

20.67

Paul Drayton

United States

Walnut, United States

June 23, 1962[2]

20.3y

−0.1

Henry Carr

United States

Tempe, United States

March 23, 1963[2]

20.2y

0.5

Henry Carr

United States

Tempe, United States

April 4, 1964[2]

20.0y

0.0

Tommie Smith

United States

Sacramento, United States

June 11, 1968[2]

19.8A

0.9

19.83A

Tommie Smith

United States

Mexico City, Mexico

October 16, 1968[2]

19.8A

0.9

19.86A

Donald Quarrie

Jamaica

Cali, Colombia

August 3, 1971[2]

19.8+

1.3

Donald Quarrie

Jamaica

Eugene, Oregon, United States

June 7, 1975[2]

Based on the table image, extract the cell contents located in column 7. Represent the cells in a column with the JSON format {"column_id":"<column index>", "cell_list":"<a list of cells in this column>"}. For instance, {"column_id":"5", "cell_list": ["152", "UN", "one last kiss"]}.

The cells in column 7: {"column_id": "7", "cell_list": ['Date', 'May 26, 1951', 'June 28, 1952', 'June 23, 1956', 'November 27, 1956', 'October 1, 1958', 'March 19, 1960', 'April 30, 1960', 'May 28, 1960', 'July 2, 1960', 'July 2, 1960', 'September 3, 1960', 'September 3, 1960', 'June 23, 1962', 'March 23, 1963', 'April 4, 1964', 'June 11, 1968', 'October 16, 1968', 'August 3, 1971', 'June 7, 1975']}