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

1890 1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 0.200% 0.160% 0.120% 0.080% 0.040% 1880 2020
         

Numbers

 Theo (masculine) 
 Year   Rank   Percent Used 
2020 #117 0.171
2010 #377 0.041
2000 #1162 0.007
1990 #1599 0.003
1980 #1324 0.003
1970 #1421 0.002
1960 #1386 0.002
1950 #1254 0.002
1940 #1031 0.003
1930 #749 0.006
1920 #644 0.009
1910 #601 0.010
1900 #471 0.015
1890 #592 0.010
1880 #640 0.008