sentences:  9 (or about 1.34% of the population) belonged to no church, are agnostic or atheist, and 21 individuals (or about 3.13% of the population) did not answer the question.In Bürchen about 224 or (33.3%) of the population have completed non-mandatory upper secondary education, and 31 or (4.6%) have completed additional higher education (either university or a "Fachhochschule").Of the 31 who completed tertiary schooling, 83.9% were Swiss men, 16.1% were Swiss women.