You took that 93% number from Wikipedia that doesnt cite any source. Israel is closer to 100% and no developed Western country is higher (Some US states are around 50%). The Israeli court system is one of the most oppressive in the world, in large part because Israeli judges and lawyers have 5 out of 9 seats on the committee that appoints judges, so there is little outside oversight. This is a very hot political debate in Israel, which is why somebody probably manipulated the Wikipedia page.
https://news.walla.co.il/item/1592752
https://www.ynetnews.com/articles/0,7340,L-4228980,00.html
I wouldn't use Israeli news media, "the originators of fake news, before fake news was a thing" - to quote
@Dan, as a source for anything.
That being said, I don't have any information one way or another, but with high-profile cases falling apart, I am not sure how accurate this is regarding Israeli courts (I am not defending them in any way shape or form). That being said, remembering what was reported when Carlos Ghosn managed to get out of Japan, I would guess that Japan, as a developed country, probably has the highest % of convictions.
As for the Israeli court system, I have no trust in it whatsoever. A family member was recently victimized by an unscrupulous Israeli lawyer, I am still waiting for the Israeli Bar Association's action on information that I submitted to them (first and foremost requesting a refund for fraudulent "legal fees", once I'm done with that I'll try to deal with the ethics and illegalities).