1950
地下水道 Kanal 1957
1950
1980
1940
1990
2010
2020
1930
1990
1920
1990
1990
1980
1940
1950
1950
1980
1960
1940
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990