[{
	"autoridad": "Nacional",
	"a2010": 53.0,
	"a2011": null,
	"a2012": 52.6,
	"a2013": 51.8,
	"a2014": 51.7,
	"a2015": 52.2,
	"a2016": 51.9,
	"a2017": 51.9,
	"a2018": 52.6,
	"a2019": 52.4,
	"a2020": 52.3,
	"a2021": 52.1,
	"a2022": 51.9,
	"a2023": 51.8
}]