The IAC implementation rates page provides a breakdown of rates based on the following criteria.
RESET
Average Implementation Rate for All Matching Recommendations: 52.9%


Total Imped Imp Rate
1981 - - -
1982 - - -
1983 - - -
1984 - - -
1985 - - -
1986 - - -
1987 131 67 51.1%
1988 183 120 65.6%
1989 180 130 72.2%
1990 167 85 50.9%
1991 169 126 74.6%
1992 166 108 65.1%
1993 126 74 58.7%
1994 151 77 51.0%
1995 95 56 58.9%
1996 91 44 48.4%
1997 135 65 50.8%
1998 112 45 40.2%
1999 89 37 41.6%
2000 102 48 47.1%
2001 51 34 66.7%
2002 40 18 45.0%
2003 97 44 45.4%
2004 119 60 54.1%
2005 61 23 43.4%
2006 75 47 62.7%
2007 67 41 61.2%
2008 92 20 34.5%
2009 65 31 47.7%
2010 68 27 51.9%
2011 81 28 36.8%
2012 72 33 45.8%
2013 64 22 34.4%
2014 74 15 20.3%
2015 94 36 40.9%
2016 59 22 39.3%
2017 39 9 45.0%
2018 68 - -
2019 21 - -
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