I use the tool religously to hand reg good names, the thing is, the results are definitely not exact. They are too similar to one another and just rounded off.
If only Google would run a monthly report of how many people are searching that exact term and give a real number- wishful thinking. It should be the "Google Maybe Tool"
My advice- Use the old keyword tool, its much more user friendly. Simply click the drop down and select "exact". In the top right corner you will see "previous version". Much easier in my opinion