How much did a communist past affect the GDP growth rate among EU member countries in 2009?

I studied the impact of the following factors on the real GDP growth rate in EU member countries in 2009, which incidentally was negative then, depicting a period of recession:

• Geographical location: Location in Central, Eastern, Northern, Southern or Western Europe.
• Whether the country joined the European Community / Union after 1980: The formation of the European Bloc has continued since 1950's from being a community with a few member countries to the 27 member EU that it is now
• The presence of a communist regime in the past
• The country in question being landlocked

Here is a summary of the results:

• The average real GDP growth rate for a country that is landlocked, joined European Union after 1980 and was formerly governed by a communist regime is -11.97.
• The countries that have not had a communist regime in the past, will have, on average, a lower value of negative real GDP growth rate, by 5.56 percent.
• A country that is not landlocked will have a lower value of negative GDP growth rate, by 5.4 percent.

• An EU member in the central region will have lower recession value by 6.18 percent.
• An EU member in the Northern region is observed to have had, on average, a higher value of recession by -7.2 percent.
  
  
  
  
  The actual real GDP growth numbers are as mentioned below:
  
  

  EU Member	Real GDP growth rate in 2009
  Austria	-3.8
  Belgium	-2.8
  Bulgaria	-5.5
  Croatia	-6.9
  Cyprus	-1.9
  Czech Republic	-4.5
  Denmark	-5.7
  Estonia	-14.1
  Finland	-8.5
  France	-3.1
  Germany	-5.1
  Greece	-3.1
  Hungary	-6.8
  Ireland	-6.4
  Italy	-5.5
  Latvia	-17.7
  Lithuania	-14.8
  Luxembourg	-5.6
  Malta	-2.8
  Netherlands	-3.7
  Poland	1.6
  Portugal	-2.9
  Romania	-6.6
  Slovakia	-4.9
  Slovenia	-7.9
  Spain	-3.8
  Sweden	-5
  United Kingdom	-5.2