What this is
Method rows / and define the blocks; the 1996-2002 vs 2003 break is added from (age skew) and (n range). Changes = differences of agreed overall shares within one block: 3.4 - 8.1 = -4.7; 5.3 - 3.6 = +1.7; <3.3 - 5.3 => <= -2.1 (2018 cutoff settled at 3.3%,).
Where it comes from
Our calculation from other figures in the trainer’s notes:
- FiledBandai こどもアンケート: method change 2012 -> 2013 (comparability), 2012 vs 2013
- FiledBandai こどもアンケート method break 2013, 1996-2018
- FiledVR survey lineage and method changes, 1976-2017
- ReportedBandai こどもアンケート 2002, 好きなキャラクター, boys and girls top 10 (Pokémon rank and share) — read from archived table images, April 2002
- FiledBandai's 2018 survey of children's favourite characters across Japan, with Pokémon outside the top ten for the first time since 1997; it was the last such survey Bandai published