https://www.bern.ch/themen/stadt-recht-und-politik/bern-in-zahlen/katost/15bilwis/15bilwis-xls/jahresdaten/t-15-01-030-kinder-in-kindergarten.xlsx/@@download/file/T%2015.01.030%20Kinder%20in%20Kinderg%C3%A4rten%2C%20Sch%C3%BCler%E2%9A%B9innen%20an%20st%C3%A4dtischen%20Primar%E2%80%93%20und%20Mittelschulen%201880%20bis%201996.xlsx