The IAC implementation rates page provides a breakdown of rates based on the following criteria.
RESET
Average Implementation Rate for All Matching Recommendations: 47.4%


Total Imped Imp Rate
1981 - - -
1982 215 12 5.6%
1983 104 26 25.0%
1984 207 110 53.1%
1985 136 85 62.5%
1986 155 97 62.6%
1987 218 158 72.5%
1988 159 94 59.1%
1989 117 63 53.8%
1990 148 100 67.6%
1991 95 60 63.2%
1992 155 68 43.9%
1993 93 44 50.6%
1994 172 74 46.0%
1995 152 65 50.0%
1996 140 63 47.0%
1997 102 38 43.2%
1998 95 46 51.7%
1999 118 39 34.8%
2000 130 39 32.8%
2001 - - -
2002 42 8 28.6%
2003 34 16 55.2%
2004 10 4 40.0%
2005 60 25 41.7%
2006 12 8 66.7%
2007 86 33 48.5%
2008 82 33 44.6%
2009 96 48 50.0%
2010 50 20 40.0%
2011 135 61 51.7%
2012 113 51 45.5%
2013 122 63 52.1%
2014 134 67 50.0%
2015 108 36 33.3%
2016 135 62 45.9%
2017 107 35 34.3%
2018 51 7 23.3%
2019 46 - -
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