How do you interpret this?

The value of a piece of new technology is changing at a rate given by V'(t) in thousands of dollars per year where t is time in years since the technology was developed. Using Riemann Sums, you estimated the area under V' between t = 5 and t = 10 to be 6. Interpret this answer in the context of the problem. (5 points) Between the year since the technology was developed and the year, the value of the piece of new technology was thousand dollars