Kazakhstan
According to the 2009 Census data, there are very few Christians outside the Slavic and Germanic ethnic groups:
Ethnic demography of Kazakhstan
As explained above, the Slavic groups have been declining ever since the 1960s, due to low birth rates and high death rates. Germans are characterized by very high birth rates, but it is mostly due to the high proportion of rural population and the presence of conservative religious factions like Mennonites and Evangelical Lutherans among them.