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Table 1
Type of Article, by Decade, Excluding Reviews and Errata
type 1970s1980s1990s2000s2010stotal
Introduction to special issue Freq. 25 
Percent 2.9 2.6 1.1 2.8 4.0 2.6 
Research articles (including methods) Freq. 171 198 157 125 128 779 
Percent 82.2 74.7 86.7 86.8 85.3 82.2 
Synthetic articles Freq. 32 52 
Percent 4.3 12.1 0.6 2.8 4.0 5.5 
Comments on research or synthetic articles Freq. 13 22 
Percent 0.5 4.9 0.0 5.6 0.0 2.3 
Comment Controversy Freq. 21 15 21 10 70 
Percent 10.1 5.7 11.6 2.1 6.7 7.4 
Total Freq. 208 265 181 144 150 948 
type 1970s1980s1990s2000s2010stotal
Introduction to special issue Freq. 25 
Percent 2.9 2.6 1.1 2.8 4.0 2.6 
Research articles (including methods) Freq. 171 198 157 125 128 779 
Percent 82.2 74.7 86.7 86.8 85.3 82.2 
Synthetic articles Freq. 32 52 
Percent 4.3 12.1 0.6 2.8 4.0 5.5 
Comments on research or synthetic articles Freq. 13 22 
Percent 0.5 4.9 0.0 5.6 0.0 2.3 
Comment Controversy Freq. 21 15 21 10 70 
Percent 10.1 5.7 11.6 2.1 6.7 7.4 
Total Freq. 208 265 181 144 150 948 
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