THE STABILITY OF THE SYSTEM

5.5

/

2006

6.701

/

1992

7.6

/

2014

6.3

/

2001

6.599

/

2005

5.5

/

2014

6.3

/

2000

6.126

/

2006

5.2

/

2011

5.4

/

2009

6.848

/

2015

6.3

/

2009

6.8

/

2010

5.6

/

2014

7.669

/

1952

7.4

/

2005

7.743

/

1930

6.619

/

2008

5.5

/

2005

7

/

2019