PGFplots Boxplot, using values of median, quartile... outside axis environment

I try to make some boxplots to some given data and use the calculated values (pgfplots did) of the median, quartiles, average,… outside the axis environment.

My MWE:

documentclass[utf8,fleqn]{scrartcl}
usepackage[ngerman]{babel}
    

usepackage{pgfplots}
usepgfplotslibrary{statistics}
usepackage{filecontents}


begin{document}

begin{filecontents*}{jobname.csv}
v
0.1
0.2
0.3
0.8
0.9
1.0 
1.5
 end{filecontents*}


begin{tikzpicture}[scale=1]
begin{axis}[
boxplot,
table/y=v,
xmin=0, xmax=1.6, 
ymin=0, ymax=2,
]
    addplot[fill=orange, thick] table[] {jobname.csv} 
[above]
node at (boxplot box cs: boxplotvalue{median},1){Median pgfmathprintnumber{boxplotvalue{median}}}
;

end{axis}
end{tikzpicture}


end{document}

I can view the values inside the plot, but any attempt to use it outside failed up to now. Any def, xdef, did not work.

Any suggestions?
Thanks very much.

    addplot[fill=orange, thick] table[] {jobname.csv} 
[above]
node at (boxplot box cs: boxplotvalue{median},1){Median pgfmathprintnumber{boxplotvalue{median}}xdefmed{boxplotvalue{median}}xdefuq{boxplotvalue{upper quartile}}xdeflq{boxplotvalue{lower quartile}}xdefuw{boxplotvalue{upper whisker}}xdeflw{boxplotvalue{lower whisker}}xdefav{boxplotvalue{average}}}
;