\documentclass[12pt]{article}
\listfiles
\usepackage{filecontents}
\begin{filecontents*}{demo0.dat}
    0.1414    0.0052
    0.2828    0.0217
    0.4243    0.0480
    0.5657    0.0890
    0.7071    0.1375
    0.8485    0.1906
    0.9899    0.2663
    1.1314    0.3580
    1.2728    0.4644
    1.4142    0.5801
    1.5556    0.7033
    1.6971    0.8899
    1.8385    1.1143
    1.9799    1.2593
    2.1213    1.5692
    2.2627    3.2331
    2.4042    4.4097
    2.5456    5.8186
    2.6870    7.4441
    2.8284    8.2287
\end{filecontents*}

\begin{filecontents*}{demo1.dat}
1 99447169
2 110351058
3 123557238
4 138346129
5 145050826
6 160363212
7 174000394
8 183856559
9 189128691
10 197634845
11 213257357
12 216899512
13 230152738
14 224144907
15 247410024
16 261168438
17 252920343
18 326153799
19 319442110
20 310351522
21 381919943
22 438043888
23 357527766
24 603304997
\end{filecontents*}

\begin{filecontents*}{demo2.dat}
  1989 3.08
  1990 3.84
  1991 4.08
  1992 3.21
  1993 5.23
  1994 2.97
  1995 2.53
  1996 2.8
  1997 2.78
  1998 3.15
  1999 2.32
  2000 2.4
  2001 2.46
\end{filecontents*}
\begin{filecontents*}{demo3.dat}
  1989 3.08
  1990 3.1
  1991 3.08
  1992 3.21
  1993 5.0
  1994 2.27
  1995 3.53
  1996 3.8
  1997 2.8
  1998 4.15
  1999 3.32
  2000 1.4
  2001 2.46
\end{filecontents*}


\usepackage[T1]{fontenc}
\usepackage[latin1]{inputenc}
\usepackage{lmodern}
%\usepackage[scaled]{luximono}
\usepackage[lmargin=2.5cm]{geometry}
\usepackage{tabularx}
\usepackage{url}
\usepackage{graphicx}
\usepackage[dvipsnames]{pstricks}
\usepackage{framed}
\usepackage{pst-eucl}
\usepackage{pstricks-add}
\let\pstricksaddFV\fileversion
\def\PST{\texttt{PSTricks}}
%
\usepackage{showexpl}
\lstset{preset=\raggedright}
%
\usepackage{longtable}
\usepackage{pifont}
\usepackage{amsmath}
\def\textat{\protect\makeatletter\texttt{@}\protect\makeatother}
\makeatletter
\renewcommand*\l@section{\@dottedtocline{1}{1.5em}{2.5em}}
\renewcommand*\l@subsection{\@dottedtocline{2}{3.8em}{3.2em}}
\renewcommand*\l@subsubsection{\@dottedtocline{3}{7.0em}{4.1em}}
\renewcommand*\l@paragraph{\@dottedtocline{4}{10em}{5em}}
\renewcommand*\l@subparagraph{\@dottedtocline{5}{12em}{6em}}
\makeatother
\let\psEllipticArc\psellipticarc
\let\psEllipticArcN\psellipticarcn
\let\psWedgeEllipse\psellipticwedge
\usepackage[colorlinks,linktocpage]{hyperref}
%\def\UrlFont{\small\ttfamily}
\makeatletter
\def\verbatim@font{\small\normalfont\ttfamily}
\makeatother
%\parindent=0pt
\newcommand\verbI[1]{{\small\texttt{#1}}}
\newcommand\CMD[1]{{\texttt{\textbackslash#1}}}
\let\param\texttt
%
\newcommand{\pstEllipse}[5][]{%
  \psset{#1}
  \parametricplot{#4}{#5}{#2\space t cos mul #3\space t sin mul}%
}
%
\newcommand{\pstEllipseWedge}[5][]{%
  \psset{#1}
  \pscustom{%
    \parametricplot{#4}{#5}{#2\space t cos mul #3\space t sin mul}%
    \psline(! #2\space #5\space cos mul #3\space #5\space sin mul)%
       (0,0)%
       (! #2\space #4\space cos mul #3\space #4\space sin mul)%
  }%
}
%
\psset{subgriddiv=0,griddots=5,gridlabels=7pt}
%
\DeclareRobustCommand\cs[1]{\texttt{\char`\\#1}}
\def\PS{PostScript}
%
%\renewcommand{\ttdefault}{ul9}% Luxi Mono

\parindent=0pt
\parskip=1ex plus 5pt
\begin{document}
\input{pstricks-add-doc}
\end{document}

