Hi,
I have a very general question to make, and I am looking for an approach.
I want to find a best chart visualization for a dashboard for the information I have in a sample table bellow.
The feature is a polygon type, and the area is calculated automatically (there are several other locations than the ones on this table).
| City headquarters | Year | Area (ha) |
| London | 2001 | 2 |
| Paris | 2002 | 1 |
| Tokyo | 2001 | 3 |
| Vancouver | 2003 | 1 |
| Paris | 2005 | 3 |
| London | 2007 | 3 |
| Vancouver | 2008 | 2 |
| Tokyo | 2008 | 4 |
| Paris | 2010 | 5 |
| Vancouver | 2011 | 4 |