2619-6573 2619-6573 S2619-65732017000100237 Ecuador Ecuador 00 06 2017 00 06 2017 27 50 237 239 2004 64 4 1986 15 69-99 1986 13 75-80 2004 2000 LIII 3 2000 1951 1999 United Nations Statistics Division (UNSD) 2007