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Word: efficiency (lookup in dictionary) (lookup stats)
Dates: during 174795-174795
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Word Time Machine

Normalized population density for word "efficiency" throughout decades:

1870s : 0.3744
1880s : 0.4980
1890s : 0.5546
1900s : 1.0171
1910s : 2.6821
1920s : 1.6747
1930s : 1.1048
1940s : 1.3548
1950s : 1.1086
1960s : 0.9539
1970s : 0.9096
1980s : 0.7272
1990s : 0.7122
2000s : 0.9102
2010s : 1.1032