Source
http://cdiac.ornl.gov/ - Please provide source if you are going to dispute other people opinions. Arguments are avoided.
2003 rough figures total volcanic is 200 million tonnes of CO2 while total human output in 1 year is 28.6 billion tonnes.
Bert your information although correct is irrelevant if you have no data or evidence to back it up. Level is significant although less than 1% still Myth busted. May not look so argumentative.
This might be a good place though to get complete data on all natural CO2 emissions put together.