\documentclass{article}\usepackage{tikz}\begin{document}
\begin{tikzpicture}[xscale=0.3, yscale=0.1]
\foreach \y in {0,10,...,40}{ \draw (-5,\y) -- (25,\y); }
\draw (17,0) \foreach \x [count=\y,evaluate=\x as \xx using \x ] in {
13,21,7,20,11,11,18,17,14,11,
12,8,12,16,4,1,7,10,9,12,
8,9,12,15,10,17,3,14,6,9,
5,16,3,6,12,8,10,5,10,4}
{ -- \pgfmathparse{rand}\let\z\pgfmathresult (\x+\z,\y-1) -- (\x+\z,\y) } ;
\end{tikzpicture}\end{document}