The IAC implementation rates page provides a breakdown of rates based on the following criteria.
RESET
Average Implementation Rate for All Matching Recommendations: 50.9%


Total Imped Imp Rate
1981 10 7 70.0%
1982 205 102 49.8%
1983 162 56 34.6%
1984 148 99 66.9%
1985 171 110 64.3%
1986 93 70 75.3%
1987 119 90 75.6%
1988 130 84 64.6%
1989 134 71 53.0%
1990 113 57 50.4%
1991 88 46 52.3%
1992 132 80 60.6%
1993 178 106 59.6%
1994 182 108 61.0%
1995 213 116 54.5%
1996 226 127 56.2%
1997 245 126 54.8%
1998 226 109 48.2%
1999 215 85 39.5%
2000 169 73 43.2%
2001 286 131 49.1%
2002 374 195 53.6%
2003 406 180 45.6%
2004 468 230 52.0%
2005 379 206 54.4%
2006 369 198 55.0%
2007 223 118 52.9%
2008 171 67 39.2%
2009 296 121 42.3%
2010 309 119 45.9%
2011 309 126 45.0%
2012 387 146 43.5%
2013 316 166 52.5%
2014 318 150 49.0%
2015 324 137 42.3%
2016 320 127 47.0%
2017 299 104 43.0%
2018 146 61 59.2%
2019 117 - -
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