Tekstuele beschrijving figuur 67 - 2018

 2008200920102011201220132014201520162017
C4 groep86,10%86,52%76,84%85,14%84,57%84,52%84,12%92,21%91,66%98,76%
C4 titels46,77%48,87%49,97%48,14%43,46%42,43%44,35%45,97%45,93%46,23%
HHI groep0,230,230,180,200,210,210,210,260,260,32
HHI titels0,080,090,080,090,070,070,070,080,080,08