Consider an economy that produces only two goods, soft drinks and hamburgers. The following price and quantity statistics are available about this economy:

Year

Hamburgers

Soft Drinks

2015

Price = $2.00; Quantity = 2000

Price = $0.50; Quantity = 2000

2016

Price = $2.25; Quantity = 2000

Price = $0.50; Quantity = 2200

Taking 2015 as the base year, find the growth rate of the constant-price GDP in 2016. Round to the nearest whole percent and enter just the number with no symbols.