Richest country in the world ?
In the seventies large amounts of oil was discovered in the seabed of Norwegian waters and today the offshore industry is the main income provider in Norway.
Being one of the worlds main oil producers and still with a large amount of clean fish (a rarity nowadays in some parts of the world) the net income for Norway has provided a positive balance for decades making Norway one of few countries on the positive side of the curve in "External depth diagrams".
Moreover the governments of Norway have invested large sums of money in solid multinational companies giving independence. The livingstandard in Norway is today very high (and so are prices). As mentioned before though, the governments of Norway have been clever to sustain rural parts of the country and so is farming and fishing still an important part of life in this country highlighted by the pictures from a farm on the island of Vega and a modern Norwegian fishing trawler.