In 2005 renewable energy made up what percentage of total energy?

By production, 9.0%. By consumption, 6.2%.
According to the National Energy Renewable Laboratory 2013 Databook, renewable electricity grew to nearly 15% of total installed capacity and 13% of total electricity generation in the United Statesin 2013. See pages 8 and 9 for % coal, gas, petroleum, nuclear and renewable production and consumption by year from 2000 through 2013.

You can find the latest "Databook" at
In 2005 world renewable energy was around 10%. Most of this was from biofuel, mostly wood used for heating and cooking in small rural villages. The percentage of biofuel is decreasing slowly as more people move to regular electricity.