well assuming that the worst is behind us the growth projections are positive to say the least. For 2010: 3.1% is the gov prediction which usually tends to under score the rate.
Taking that as trend you would be quite safe in assuming the following
2011: 4.00% that is on the Conservative side
2012: 5.00% again on the Conservative side
Poland's rate of growth for the previous 10 years has been 4.5%, If i had to make a prediction I think it is going to be 4.7% for this decade, my prediction is on the conservative side.
I do agree that this is a major advantage. In NL they privatized these things and look what a mess it is now: in my area I hear that the mail is delivered by four different companies, one for the leaflets, one for the mail up to 20 grammes, one for all the other mail and one for packages :(
I agree that some should remain in government hands, though Poland has the opposite problem, of to many Public companies, so they are on the right track by selling them.