How Annoying is it? 
- 39.2% - mildly distressed 23.9% - severely distressed
 - 12.8% - most severely distressed
 
- 60% - medium degree of tinnitus loudness
 - 32% - strong degree of tinnitus loudness
 - 8% - rated their condition as weak
 
Source: Archives of Otolaryngology-Head & Neck Surgery