Yes. Very roughly, these 22 countries worth about 20% of global GDP so, taking Zucman's $190 bn offshore tax evasion estimate, might expect $40 bn if this estimate is on target - cf. Panama papers $1.2 bn total (which covers multiple years, but only one, albeit major provider) https://twitter.com/dslesperance/status/1116269467917606912 …
Here you go - with corrections!https://hiyamaya.net/2019/04/12/how-much-money-has-been-recovered-as-a-result-of-the-panama-papers/ …