Year

Real Values

Predictive Values

Error (%)

1961

1.692

1.692

0

1965

1.874

1.832

−2.235

1970

2.117

1.894

−10.514

1975

2.165

1.914

−11.578

1980

2.262

1.965

−13.124

1985

2.188

2.019

−7.741

1990

2.243

2.018

−10.045

1995

2.198

2.029

−7.669

2000

2.196

2.234

1.728

2001

2.190

2.278

4.007

2002

2.2

2.330

5.909

2003

2.23

2.381

6.771