R version 2.7.1 (2008-06-23)
Copyright (C) 2008 The R Foundation for Statistical Computing
ISBN 3-900051-07-0

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

> x <- c(11.9,13.6,15.2,12.5,14.9,13.7,12.5,13.1,14.5,15.2,16.1,14.8,15.1,14.8,16.1,14.3,15.2,14.9,13.1,12.6,13.6,14.4,14,12.9,13.4,13.5,14.8,14.3,14.3,14,13.2,12.2,14.3,15.7,14.2,14.6,14.5,14.3,15.3,14.4,13.7,14.2,13.5,11.9,14.6,15.6,14.1,14.9,14.2,14.6,17.2,15.4,14.3,17.5,14.5,14.4,16.6,16.7,16.6,16.9,15.7,16.4,18.4,16.9,16.5,18.3,15.1,15.7,18.1,16.8,18.9,19,18.1,17.8,21.5,17.1,18.7,19,16.4,16.9,18.6,19.3,19.4,17.6,18.6,18.1,20.4,18.1,19.6,19.9,19.2,17.8,19.2,22.1,21.2,19.5)
> par3 = ''
> par2 = 'http://www.nbb.be/belgostat/PresentationLinker?Order=true&prop=null'
> par1 = ''
> ylab = 'miljarden euro's'
Error: unexpected symbol in "ylab = 'miljarden euro's"
Execution halted