196
1960
1961
1962
1963
1964
1965
1966
1967
197
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
198
1983
1984
1986
1987
1988
1989
199
1990
1992
1993
1994
1995
1996
1997
1998
1999
20
200
2000
2001
2002
2003
2004
2005
2007
2008
2009
201
2010
UNESCO Atlas of the World’s Languages in Danger ID