Google Books Ngram Viewer

Graph these comma-separated phrases:
case-insensitive
between and from the corpus with smoothing of .  
Search in Google Books:

1800 - 1951 1952 - 1995 1996 - 1997 1998 - 1999 2000 performance Spanish
1800 - 1880 1881 - 1971 1972 - 1981 1982 - 1991 1992 - 2000 rendimiento Spanish
1800 - 1876 1877 - 1988 1989 - 1992 1993 - 1996 1997 - 2000 comportamiento Spanish

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