If I read it right this was a test on 63 people of which 8 were instantly thrown out for not meeting certain criteria, a further six experienced worse or same complaints and the rest reported some to much relief.
This was measured by the participants picking one of six smiley faces going from happy to sad to angry. Asked once at the beginning of the series of acupuncture sessions, once after four sessions, once at the end of treatment and once after a year.
End of treatment varied from person to person between 4 and 15 sessions.
Important notes at the end of the text: results were optimal for persons that had experienced tinnitus for less than six months leading up to the treatment. Less so the longer someone had suffered from tinnitus.
In conclusion, interesting bit of work on very few people for a very limited time. Needs peer review and extensive controlled repetition by other experts in the field.