Popularity (masculine) in Brazil (by decade)

1940 1950 1960 1970 1980 1990 17,000 13,600 10,200 6,800 3,400 1930 2000
    

Numbers

 Isaias (masculine) 
 Year   Rank   Times Used 
2000 #181 11519
1990 #174 12392
1980 #159 14568
1970 #144 13910
1960 #115 12493
1950 #134 7483
1940 #136 3716
1930 #157 1670