{"text_format":"dbase-jsonl-2026-09-30","columns":[{"name":"LETRA","type":"character","width":254},{"name":"anualidad","type":"character","width":80}],"n_rows":68,"rows_kept":68,"cut":false,"deleted_skipped":0,"read_ended":"whole","bounds":"16MiB/16384/4096/first_that_fit","version":"dbase_level_three","encoding_class":"enc_absent","reader":"statdb_count/9"}
["E","1900"]
["E","1920"]
["G","1931"]
["E","1934"]
["G","1945"]
["E","1948"]
["F","1950"]
["E","1952"]
["E","1953"]
["F","1955"]
["G","1957"]
["E","1958"]
["F","1959"]
["G","1960"]
["G","1961"]
["G","1962"]
["G","1963"]
["E","1964"]
["E","1965"]
["E","1966"]
["E","1967"]
["G","1968"]
["E","1969"]
["E","1970"]
["E","1971"]
["E","1972"]
["E","1973"]
["E","1974"]
["E","1975"]
["E","1976"]
["E","1977"]
["E","1978"]
["E","1979"]
["E","1980"]
["E","1981"]
["E","1982"]
["E","1983"]
["E","1985"]
["E","1986"]
["E","1987"]
["E","1988"]
["E","1989"]
["E","1990"]
["E","1991"]
["E","1992"]
["E","1993"]
["E","1994"]
["E","1995"]
["E","1996"]
["E","1997"]
["E","1998"]
["E","2000"]
["E","2001"]
["E","2002"]
["G","2003"]
["F","2004"]
["E","2005"]
["E","2006"]
["E","2007"]
["E","2008"]
["E","2009"]
["E","2010"]
["D","2011"]
["E","2012"]
["E","2013"]
["C","2014"]
["C","2015"]
["B","2017"]