In the Nordic nations, there was a obvious drop in standard intelligence starting off in the 1990s, an average of 6.85 IQ points if projected over 30 years. The Research Institute for Publications studies that income of electronic manga publications excluding magazines jumped 27.1 p.c to ¥146 billion in 2016 from the 12 months ahead of although profits of paper manga saw a record 12 months-on-yr decrease of 7.4 per cent to ¥194.7 billion.