On the other hand, let me pose a question ...
Is this because, although the economy is growing the population among whom it's divided is growing faster?
Yes, that is possibly a reason, though not as important IMO as the small (realtively) number of people who are benefitting from the economic "growth". I would also like to see this economic growth explained, and see the areas where we do well - arms sales (to despicable regimes), financial packages, property sales to foreign buyers/investors.
I personally feel that we joined the EU "Half cock", by not joining the Eurozone, thereby not having enough leverage when it comes to influencing important matters. However, the wonderful power of hindsight has shown us that the Eurozone is not all that it was cracked up to be.
I personally think that the current situation in Ukraine (tempting them to become part of the EU) is an absolute disaster, and will cost the WHOLE of the EU (including us, who were among the cheerleaders, along with the US) dear, because Ukraine will turn out to be a bottomless pit which gobbles up EU funds.
We then have the bail out of countries like Greece, who historically are extremely corrupt and lack any real kind of beaurocracy, thereby allowing large swathes of the population to avoid paying taxes. The same applies to a lesser degree with Spain, Portugal and Italy.
I agree with others who say the EU should become more streamlined, have greater transparency, more accountability, and most importantly every country should be using exactly the same methods to calculate the following - economic growth/stagnation/recession, immigration, unemployment (including all relevant data for students/training, economically inactive, welfare recipients, NMW - should be made compulsory IMO).
One of the things which I would like to see introduced, are standard benefits across the whole of the EU, and make that a condition of countries wishing to join the EU.