IPCC AR4 reported:
The Netherlands is an example of a country highly susceptible to both sea-level rise and river flooding because 55% of its territory is below sea level where 60% of its population lives and 65% of its Gross National Product (GNP) is produced.
Dutch newspaper Vrij Nederland reported today (Google translation):
In its last Assessment Report on the impacts of climate change shows that 55% of Netherlands is below sea level in this area and that 65% of the gross national product is produced. These figures are far too high. The Central Bureau of Statistics (CBS) is only one fifth of the Netherlands below sea level and there are only 19% instead of 65% of the GDP generated.
Not that 20% is something to be ignored if that’s what they think. But the percentage below sea level is the sort of thing that primary school geography classes should be able to get right.