Tekstuele beschrijving Figuur 64 2020

 2010201120122013201420152016201720182019
C4 groep76,84%85,14%84,57%84,52%84,12%92,21%91,66%98,76%98,90%99,00%
C4 titels49,97%48,14%43,46%42,43%44,35%45,97%45,93%46,23%46,11%47,74%
HHI groep0,180,200,210,210,210,260,260,320,3800870,377987
HHI titels0,080,090,070,070,070,080,080,080,0793940,083093