US Popularity by Initial Letter


KEY  
i [Isabella, Irene, Iesha, etc] (f)
i [Isaac, Isaiah, Ian, etc] (m)
1890 1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 2.700% 2.160% 1.620% 1.080% 0.540% 1880 2023