Google Books Ngram Viewer

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

1960 - 1983 1984 1985 1986 - 1996 1997 - 1998 software author English
1960 - 1984 1985 - 1996 1997 1998 1999 - 2000 software developer English

Run your own experiment! Raw data is available for download here.
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