what is the {determination method} for {Kazakhstan} has {total fertility rate} as {1.9} ?
What is the determination method for Kazakystan's fertility rate of 1.9?
SELECT ?value WHERE { wd:Q232 p:P4841 ?s . ?s ps:P4841 ?x filter(contains(?x,'1.9')) . ?s pq:P459 ?value}
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q232> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P4841> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <1.9> .
?statement <http://www.wikidata.org/entity/P459> ?value. 
} 

Kazakystan's Fertility rate of 1.9 is determined by what?