American dependence on imports grew from 10% in 1970 to 65% by the end of 2004.

It is perhaps even more important now, when American dependence on foreign oil is such an enormous national security issue.

Nevertheless, some officials worry about the American dependence on Saudi money.

Washington should give itself more leverage for doing so by drastically decreasing American dependence on imported oil.

American dependence on oil imports grew from 24% in 1970 to 65% by the end of 2005.

Take the question of American dependence on foreign oil.

American dependence on imports grew from 24% in 1970 to 66% in 2008.

And politicians know that reducing the national electricity tab will lower American dependence on foreign oil.

The issue of American dependence on imported oil has come to prominence only occasionally in the campaign.

As a result, American dependence on foreign oil could soar.