The IAC implementation rates page provides a breakdown of rates based on the following criteria.
RESET
Average Implementation Rate for All Matching Recommendations: 50.3%


Total Imped Imp Rate
1981 - - -
1982 - - -
1983 - - -
1984 - - -
1985 - - -
1986 9 4 44.4%
1987 22 19 86.4%
1988 63 44 69.8%
1989 37 34 91.9%
1990 5 3 60.0%
1991 7 7 100.0%
1992 15 9 60.0%
1993 57 30 58.8%
1994 111 59 53.2%
1995 175 85 48.6%
1996 178 62 38.5%
1997 178 62 40.5%
1998 165 77 49.4%
1999 125 25 20.0%
2000 119 26 25.7%
2001 7 3 42.9%
2002 25 19 76.0%
2003 16 3 18.8%
2004 138 69 56.6%
2005 95 57 64.0%
2006 101 56 55.4%
2007 41 22 53.7%
2008 67 35 52.2%
2009 29 9 45.0%
2010 88 56 63.6%
2011 39 20 51.3%
2012 59 28 47.5%
2013 50 25 52.1%
2014 84 52 61.9%
2015 112 56 50.0%
2016 43 21 61.8%
2017 36 18 50.0%
2018 18 8 66.7%
2019 7 - -
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