The following table gives real GDP figures for an economy for four years. Fill in the growth rate for each year, and then find the average annual growth rate for the period. Enter all answers as percentages rounded to one decimal place. Year Real GDP Growth Rate (%) 1999 120 2000 127.2 enter your response here% 2001 134.8 enter your response here% 2002 148.3 enter your response here% The average annual growth rate for this period is ______% .