Average income and military spending in the world's wealthiest nations have jumped in the last 15 years, but foreign aid is down, the UN Development Program said. The figures appeared on the UNDP web site a day before the start of the G-8 summit in Scotland, and were meant to highlight how the richest nations were falling well short of promises to increase aid to 0.7% of their national incomes. The agency warned that the world's wealthiest countries