Norway is a bad comparison. It has a more homogenous population, a different culture, no state system, and has a very large oil fund.

Norway's oil trust, formally known as the Government Pension Fund Global, is the world's largest sovereign wealth fund, managing over US $2 trillion in assets. Established to safeguard petroleum revenues for current and future generations, the fund invests heavily in global equities, bonds, real estate, and renewable energy.

A better comparison might be Germany or Britain.