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Word: differential (lookup in dictionary) (lookup stats)
Dates: during 1970-1979
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Word Time Machine

Normalized population density for word "differential" throughout decades:

1870s : 2.3043
1880s : 0.4643
1890s : 0.6937
1900s : 1.5143
1910s : 1.1004
1920s : 0.8678
1930s : 1.5857
1940s : 1.1719
1950s : 0.7590
1960s : 1.2050
1970s : 1.1268
1980s : 0.8272
1990s : 0.8784
2000s : 0.8607
2010s : 1.3119