Prisoner's Dilemma

10

/

1973

7.4

/

1964

6.43

/

1970

7.4

/

2021

6.4

/

2006

7.3

/

1989

7.196

/

1964

7

/

1952

7.129

/

1964

6.09

/

2021

7.415

/

1954

7.4

/

1924

5.6

/

1955

6.069

/

1980

5.669

/

2008

6.594

/

1958

7.2

/

1952

6.3

/

2008

6.4

/

2005

7.082

/

1938