I have 2 categories of data - production & consumption of energy. within
these categories, the data is further broken down into the energy source (eg.
oil, gas etc).

I want to graph the data in such a way that production and consumption
totals are plotted as a time series, with each one showing the contribution
from the specific energy sources.

Is this possible with any of the default graph types? If yes, which one? If
not, can I create a custom graph type? how?

Thank you, in advance, for any inputs, advice, suggestions etc.