
\documentclass[margin=10pt]{standalone}
\usepackage{pgfplots}
\usepgfplotslibrary{statistics}
\begin{document}
                  
\pgfplotsset{width=15cm, height=10.5cm, compat=1.8}
\begin{tikzpicture}
    \begin{axis}[
    cycle list name=auto,
    xlabel=1,
    ytick={1,2,3,4,5,6,7},
    yticklabels={'5000000'|ghc-7.0.1\\'5000000'|ghc-7.2.1\\'5000000'|ghc-7.4.1\\'5000000'|ghc-7.6.1\\'5000000'|ghc-7.8.1\\'5000000'|ghc-7.10.1\\'5000000'|ghc-8.0.1\\},
    max space between ticks=50pt
    ]
        \addplot+[
        boxplot prepared={
            median=2276.9427975,
            upper quartile=2469.088804,
            lower quartile=2175.1428405,
            upper whisker=2484.155312,
            lower whisker=2165.265132
        },
        ] coordinates {};
        
        \addplot+[
        boxplot prepared={
            median=2188.8544455,
            upper quartile=2454.51596625,
            lower quartile=2185.2222455,
            upper whisker=2497.046055,
            lower whisker=2178.315261
        },
        ] coordinates {};
        
        \addplot+[
        boxplot prepared={
            median=2168.0475075,
            upper quartile=2324.8623375,
            lower quartile=2142.0973050000002,
            upper whisker=2395.142193,
            lower whisker=2130.587974
        },
        ] coordinates {};
        
        \addplot+[
        boxplot prepared={
            median=2179.348414,
            upper quartile=2354.95993275,
            lower quartile=2114.36174175,
            upper whisker=2413.005734,
            lower whisker=2103.572609
        },
        ] coordinates {};
        
        \addplot+[
        boxplot prepared={
            median=1638.8379135,
            upper quartile=1779.2498985,
            lower quartile=1597.34370475,
            upper whisker=1866.902661,
            lower whisker=1585.523364
        },
        ] coordinates {};
        
        \addplot+[
        boxplot prepared={
            median=1540.638449,
            upper quartile=1558.87049825,
            lower quartile=1537.7672235,
            upper whisker=1558.87049825,
            lower whisker=1531.45847
        },
        ] coordinates {};
        
        \addplot+[
        boxplot prepared={
            median=1581.2034095,
            upper quartile=2184.868045,
            lower quartile=1567.468004,
            upper whisker=2239.03561,
            lower whisker=1548.904146
        },
        ] coordinates {};
        
    \end{axis}
\end{tikzpicture}
        
\end{document}
