Looks like it has to do with oil usually. If China is 25% then Russia, Iran and Venezuela make up the other 75%.
Venezuela
https:// www.reuters.com/article/us-venezuela-economy/venezuela-announces-99-6-percent-devaluation-of-official-forex-rate-idUSKBN1FP2WK
Iran
https:// www.al-monitor.com/pulse/originals/2018/02/iran-currency-rial-toman-devaluation-central-bank.html
Russia
https:// www.rt.com/business/424293-russia-ruble-trump-sanctions/
Blast from the past (2015)
https:// www.thestreet.com/story/13262221/1/global-markets-on-edge-amid-currency-devaluations.html