They don't track third and fourth doses individually. So some percentage higher (x) than 66 has the third booster and (132-66+(x)) has had the 4th booster.
Interesting but... pretty sure that's not how this works. Think it's a typo.
https://ourworldindata.org/grapher/covid-vaccine-booster-doses-per-capita?country=~JPN
That's exactly how this works.
Well I'll be diped! Thanks for the correction.
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