I have a spreadsheet on google drive with a series of dates in a column, each date representing a particular event.
1998-01-07 1998-01-10 1998-01-22 1998-01-23
If I have two or more events on the same date, that date appear that many times in the column
2000-02-18 2000-03-12 2000-03-12 2000-03-12 2000-03-20
I'm trying to create a column chart with number of events by month without success.