Popularity (feminine) in the United States (by decade)

1890 1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 1.400% 1.120% 0.840% 0.560% 0.280% 1880 2020
         

Numbers

 Bertha (feminine) 
 Year   Rank   Percent Used 
2020 - -
2010 - -
2000 - -
1990 #1261 0.007
1980 #945 0.009
1970 #614 0.017
1960 #395 0.031
1950 #246 0.057
1940 #157 0.109
1930 #116 0.192
1920 #70 0.311
1910 #43 0.471
1900 #20 0.781
1890 #12 1.068
1880 #8 1.305