I was looking at the World Intellectual Property Organization (WIPO) website today, and I saw that the organization added 2019 to its UDRP cases search page. This should mean that the organization closed out the 2018 year for UDRP filings, allowing me to compare the number to the prior year.
In the 2018 WIPO UDRP case list, the most recent UDRP filing is listed as case D2018-2952. I believe this means that there were 2,952 UDRP filings for the year. The latest UDRP filing was for Similac.Top. The UDRP was filed by Abbott Laboratories.
In the 2017 WIPO UDRP case list, the last UDRP filing of the year was listed as case D2017-2603. The final UDRP of 2017 at WIPO was against graingeronlinesafteymanager.com. The UDRP was decided in favor of the complainant, W.W. Grainger, Inc.
If my math is correct, it would appear that there were 349 more UDRP filings made in 2018 than there were in 2017 at the World Intellectual Property Organization. This does not include filings at NAF, the Czech Arbitration Forum, or any other UDRP venues. This also does not include URS filings.