Tamino suggested that I look at some data at NOAA on annual CO2 changes and that I should have some more fun with graphs. I did as he said and the graph below shows the results of plotting the raw data for 48 years. 
The average annual increase over the 48 year record is 1.4o ppm/year. Tamino claims that the rate is over 2 ppm/year. There are ups and downs in the record with a some years like 2002 and 2005 at 2.5 ppm/year and 2003 at 2.3 ppm/year. But as we are told repeatedly short term changes are not indicative of long term trends.
The graph from NOAA is repoduced here:
A rough calculation shows that CO2 levels rose by about 65 ppm over the 48 year record for an average of 1.35 ppm/year.
