In point of fact there were a number of statistics bandied about which made comparisons with other countries. First up, you cannot compare very large countries with very small countries (by population that is). It would be like comparing a rowing boat with an ocean liner, they don't do the same things other than float on water.
This can reach a ludicrous extent. Take recent press reports that China's GDP will soon surpass that of the US - so what? China has a population 4 times larger than the US so its GDP should be larger, but isn't. The real question is how does China's per capita income, even when it surpasses the US, compare with it. Answer: there is no comparison the US is vastly wealthier than China and will remain so for a very long time.
Now let's take a comparison closer to home. Scotland has a population of around 5.3 million. A reasonable comparison would therefore be with countries of similar population. So let's look at 2, Norway (a pure social democracy) and Ireland (a market based capital democracy). Where does Scotland fall? Well, actually somewhere in the middle and it's not hard to see why. Scotland is quite a bit more socially democratic than Ireland and a bit less than Norway. Does this affect GDP? Yes it does. Does this affect per capita income? Individually, it can, but as a general rule not much that you'd notice.