Estimates offered by IMTA (2009) indicate that water sector expenditures approached MXN 40 billion per year in 2004-2006 (about 0.5% of GDP), MXN 48 billion in 2007 and MXN 60 billion in 2008 (IMTA, 2009). According to Figure 3.3, expenditures exceeded MXN 80 billion in 2009. The increases in the last decade followed a long period of relative neglect, as water investments decreased by a third between 1980 and 2002 (Medel, 2010).