Bubble chart
=====================================================
Inspired from this Highcharts `demo <https://www.highcharts.com/demo/bubble>`_

.. note::
    Requires the `highcharts-more` module:
    :: 
    
        easychart.config.scripts.append("https://code.highcharts.com/modules/highcharts-more.js")
        easychart.config.save() 

    See section on `extensions <https://easychart.readthedocs.io/en/latest/contents/rendering.html>`_ for more details.

.. raw:: html 

    <div class="chart-container" style="min-height:400px" data-filename="../../_static/charts/chart-21.json?v=1"></div>


.. literalinclude:: /_misc/examples/chart-21.py