For what it's worth, an item from this evening's newscasts here in Madrid:
a poll conducted by Spain's Centro de Investigaciones Sociológicas asked a sampling of slightly less than 2500 people what they thought of the withdrawal of Spanish troops from Iraq.
The results:
Very good: 50.0% Good: 26.8% Indifferent: 8.1% Bad: 5.8% Very bad: 4.5% Don't know: 4.3% No comment: .5%