TikZ : un node n'est pas aux coordonnées attendues

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\documentclass[french,]{scrartcl}
\usepackage{babel}
\usepackage{tikz}
\usepackage{xcolor}
\begin{document}
\begin{tikzpicture}[scale=1,every node/.style={scale=.5}]
        \draw (0,-0.5)   node {1950} ;
        \draw (20,-0.5)  node[red] {1960} ;   % invisible ( (20,0) affiché loin à droite)
        \draw (0.7,-0.5) node[green] {1960} ;  % visible: (0.7,0) au lieu de (20,0)
        \draw (100,-0.5) node {2000} ;
        \draw (130,-0.5) node {2010} ;
        \draw (150,-0.5) node {2020} ;
        \draw (154,0)    node {2022} ;
        \pgfplothandlerybarinterval
        \pgfplotstreamstart
        \pgfplotstreampoint{\pgfpoint{0}{10}}
        \pgfplotstreampoint{\pgfpoint{20}{0}}  % «1960» attendu là
        \pgfplotstreampoint{\pgfpoint{100}{00}}
        \pgfplotstreampoint{\pgfpoint{110}{50.25}}
        \pgfplotstreampoint{\pgfpoint{130}{64.5}}
        \pgfplotstreampoint{\pgfpoint{150}{180}}
        \pgfplotstreampoint{\pgfpoint{154}{180}}
        \pgfplotstreamend
        \pgfusepath{stroke}
\end{tikzpicture}
\end{document}
 
 
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