Legend (ServicesDOTS/ConstructionBooms)

2010 - Present (0) 2000 - 2009 (1) 1990 - 1999 (2) 1980 - 1989 (3) 1970 - 1979 (4) 1960 - 1969 (5) 1950 - 1959 (6) 1940 - 1949 (7) 1930 - 1939 (8) 1920 - 1929 (9) 1910 - 1919 (10) 1900 - 1909 (11)