# Years Size Links
Ce 1913–2012 19.4%
ChPe 1934–2012 15.2%
Co 1925–1959 7.3%
Co 1882–2012 44.7%
La 1904–2012 56.7%
Li 1882–2012 73.7%
Mo 1889–1906 21.1%
NaLi 1904–1927 18.7%
Pr 1974–2012 24.3%
Ra 1928–1933 22.0%
SoDeWo 1922–1927 5.3%
SoLe 1974–2012 13.9%