Popularity (masculine) in Spain (by decade)

1930 1940 1950 1960 1970 1980 1990 2000 0.600% 0.480% 0.360% 0.240% 0.120% 1920 2010
              

Numbers

 Guillermo (masculine) 
 Year   Rank   Percent Used 
2010 #43 0.509
2000 #35 0.550
1990 #37 0.513
1980 #60 0.304
1970 #71 0.219
1960 #75 0.203
1950 #71 0.203
1940 #60 0.218
1930 #60 0.236
1920 #65 0.243