>>162
https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.oecd.org/japan/social-mobility-2018-JPN-JP.PDF&ved=2ahUKEwiVhM249KD_AhULCt4KHR-tDnkQFnoECAsQAQ&usg=AOvVaw1HmMMNUjXVTE7X65Pgx5-N

平均より流動性があるって話だが