Krish, you have to count whole years. If you mean 2000 - 2010, you need to count the year 2000 as well as 2010. Why? Because you are non-specific. It may be that you count Jan 1, 2000 - Dec. 31, 2010, or Dec. 31, 2000 - Jan 1, 2001. Common practice is to count a decade 2001 - 2010, which is 10...