# Pgfplots: grouped bar-charts using single addplot

I have a single .csv data file, with contents alike this:

Time, Value
0, 7.130000000000109
0, 7.634999999999309
0, 6.040000000000873
...
1, 5.5900000000001455
1, 6.0649999999996
1, 6.204999999999018
...
n, 5...
n, 6...
n, 7...


And I'm trying to plot a grouped bar-chart of this data, such that all the y-values (Value) with the same x-value (Time) are grouped.

Thus far I'm plotting using this:

\begin{tikzpicture}
\begin{axis}[ybar]
\end{axis}
\end{tikzpicture}


But the result is overlapping bars (rather than the bars being grouped next to one another).

Figured my data was regular; m readings for each unique Time value, so I ended up doing this:

\begin{tikzpicture}
\begin{axis}[ybar]
\foreach \n in {1,...,m} {