{"period":"1882 - 1903","immigration":25000}
{"period":"1904 - 1914","immigration":40000}
{"period":"1919 - 1923","immigration":35000}
{"period":"1924 - 1931","immigration":80000}
{"period":"1932 - 1939","immigration":200000}
{"period":"1939 - 1945","immigration":70000}