The year 2001 saw Deflation (economics) of 0.1%. The governments overall budget deficit rose sharply in 1999 and 2000 to 3.2% of GDP, the result of hikes in government salaries, expenditures related to the 2000 election campaign, higher foreign debt service payments, and lower tax revenues. The government brought the deficit down to 2.5% of GDP in 2001, and set a target of 1.9% of GDP for 2002. Perus stability brought about a substantial reduction in underemployment, from an average of 74% from the late 1980s through 1994 to 43% in the 1995-96 period, but the rates began climbing again in 1997-2002 to over half the working population. The poverty rate remained at 54% in 2001, with 24% of Peruvians living in extreme poverty. In 2005, 18% of Peruvians were living in extreme poverty and a poverty rate at 39%. As of 2010, around 30% of its total population is poor
Question: How many years was the time span where underemployment began climbing again to over half of the working population?
Answer: 5