Popularity in Spain (by decade)

1930 1940 1950 1960 1970 1980 1990 2000 0.500% 0.400% 0.300% 0.200% 0.100% 1920 2010
         

Numbers

 Petra (feminine) 
 Year   Rank   Percent Used 
2010 - -
2000 - -
1990 - -
1980 - -
1970 #405 0.022
1960 #165 0.073
1950 #111 0.142
1940 #82 0.214
1930 #60 0.313
1920 #48 0.406