One hell of a neat chart plotting cases of largest GDP drops in history (since 1950) by country and period:
via @FT, h/t @ReutersJamie
Note Russia, Ukraine, Georgia and rest of the former USSR.
Now, using IMF database, and referencing the first year when there is sufficient consistent level of data covered in the database (1993), here is a chart plotting 50 lowest growth states in the global economy in terms of cumulative real GDP increases between 1993 and 2014:
Have fun with this.