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Word: ozone (lookup in dictionary) (lookup stats)
Dates: during 1920-1929
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Word Time Machine

Normalized population density for word "ozone" throughout decades:

1880s : 0.0575
1900s : 0.1251
1910s : 0.0511
1920s : 0.1517
1930s : 0.2731
1940s : 0.1244
1950s : 0.2878
1960s : 0.2772
1970s : 1.1685
1980s : 2.2576
1990s : 3.4788
2000s : 0.5659
2010s : 0.3656