The IAC implementation rates page provides a breakdown of rates based on the following criteria.
RESET
Average Implementation Rate for All Matching Recommendations: 49.9%


Total Imped Imp Rate
1981 - - -
1982 - - -
1983 - - -
1984 40 33 82.5%
1985 107 68 63.6%
1986 82 37 45.1%
1987 160 65 40.6%
1988 51 25 49.0%
1989 55 13 23.6%
1990 98 54 55.1%
1991 90 71 78.9%
1992 61 34 55.7%
1993 108 41 38.0%
1994 101 48 47.5%
1995 70 37 52.9%
1996 123 52 42.3%
1997 84 32 38.1%
1998 46 21 45.7%
1999 108 57 52.8%
2000 104 67 64.4%
2001 78 34 43.6%
2002 95 54 56.8%
2003 38 20 52.6%
2004 51 26 51.0%
2005 81 54 66.7%
2006 85 47 55.3%
2007 56 24 42.9%
2008 88 39 44.3%
2009 31 16 51.6%
2010 47 26 55.3%
2011 91 39 42.9%
2012 128 63 49.2%
2013 59 24 40.7%
2014 25 11 44.0%
2015 31 15 48.4%
2016 52 21 40.4%
2017 60 23 38.3%
2018 36 5 41.7%
2019 5 - -
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