In a survey by the Medical Directorate of Health in Iceland, conducted in November/December 2013, about 47% of the respondents said that relative(s) or someone in their closest social environment had drunk too much once or more often during the last 12 months; about 60% said this had had negative impact on them. 30% said they had been harassed by drunken people in bars, restaurants or private parties during the last 12 months. 13% said so in a similar survey conducted in 2001. Young people were more exposed than the older ones. 25% had been annoyed by drunken people in the streets or other open public places; 22% said this had scared them. Young people and people living in the capital area were more likely to complain about this.
 

Source: http://www.landlaeknir.is/servlet/file/store93/item22838/Talnabrunnur_mars_2014.pdf