Tekstuele beschrijving figuur 79 2016

 200720082009201020112012201320142015
C4 groep85%86%87%77%85%85%85%84%92%
C4 titels47%47%49%50%48%43%42%44%46%
HHI groep0,230,230,230,180,20,210,210,210,260894
HHI titels0,080,080,090,080,090,070,070,070,079338
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