Looking at the graph on slide 9, how are our current energy sources different than they were in 1962 (half way between 1950 and 1975 on the graph). Be specific and include 4 total BTU measurements in your response and refer to specific energy sources by name. In 1962 they didn't use as a ton of coal, and over recent years weve used more of it. Also nuclear energy was just started in 1962 and was still being researched, and now we are starting to use it more and more