Norway puts their oil revenue into a fund, and puts the surplus of this fund into their yearly budget (the rule is to use less than 3% of the current value of the fund). This amounts to about 20% of the budget I believe.
Norway puts their oil revenue into a fund, and puts the surplus of this fund into their yearly budget (the rule is to use less than 3% of the current value of the fund). This amounts to about 20% of the budget I believe.