"ano","brecha"
"2000","0.14"
"2001","0.15"
"2002","0.14"
"2003","0.13"
"2004","0.18"
"2005","0.17"
"2006","0.18"
"2007","0.21"
"2008","0.2"
"2009","0.18"
"2010","0.18"
"2011","0.21"
"2012","0.16"
"2013","0.17"
"2014","0.18"
"2015","0.15"
"2016","0.15"
"2017","0.14"
"2018","0.19"
"2019","0.17"
"2020","0.2"
"2021","0.25"