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Table 5. 
Number of journals whose change in IF (Δf(c)) due to their highest-cited paper was greater than the threshold in the first column. For example, 381 journals had their IF boosted more than 0.5 points by their most cited paper. Publication years = 2015–2016, Citation year = 2017. Data from JCR. Total number of papers in data set is 3,090,630, published in 11,639 journals
Volatility, Δf(c*) (threshold)No. journals above threshold% all journals
0.1 3,881 33.3% 
0.25 1,061 9.1% 
0.5 381 3.3% 
0.75 221 1.9% 
140 1.2% 
1.5 73 0.6% 
41 0.4% 
21 0.2% 
11 0.1% 
0.1% 
10 0.03% 
50 0.01% 
Volatility, Δf(c*) (threshold)No. journals above threshold% all journals
0.1 3,881 33.3% 
0.25 1,061 9.1% 
0.5 381 3.3% 
0.75 221 1.9% 
140 1.2% 
1.5 73 0.6% 
41 0.4% 
21 0.2% 
11 0.1% 
0.1% 
10 0.03% 
50 0.01% 
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