Size of the dwelling (no. of persons occupying it);Source of noise;Total TOTAL;With a noise problem;25.1 TOTAL;Due to overland traffic;11.7 TOTAL;Due to air traffic;1.9 TOTAL;Due to neighbours;8.9 TOTAL;From animals;2.8 TOTAL;Mechanical causes (including construction);7.3 TOTAL;Due to trade and recreational activities;3.5 TOTAL;Due to informal urban get-togethers (outdoor drinking);2.8 TOTAL;Other causes;1.5 TOTAL;Have taken some measure against noise (*);31.0 1-person dwelling;With a noise problem;21.1 1-person dwelling;Due to overland traffic;9.5 1-person dwelling;Due to air traffic;1.2 1-person dwelling;Due to neighbours;7.7 1-person dwelling;From animals;2.3 1-person dwelling;Mechanical causes (including construction);6.4 1-person dwelling;Due to trade and recreational activities;3.3 1-person dwelling;Due to informal urban get-togethers (outdoor drinking);2.7 1-person dwelling;Other causes;1.7 1-person dwelling;Have taken some measure against noise (*);26.7 2-person dwelling;With a noise problem;25.0 2-person dwelling;Due to overland traffic;11.6 2-person dwelling;Due to air traffic;1.6 2-person dwelling;Due to neighbours;9.0 2-person dwelling;From animals;2.5 2-person dwelling;Mechanical causes (including construction);6.7 2-person dwelling;Due to trade and recreational activities;3.7 2-person dwelling;Due to informal urban get-togethers (outdoor drinking);2.8 2-person dwelling;Other causes;1.2 2-person dwelling;Have taken some measure against noise (*);32.3 3-person dwelling;With a noise problem;27.8 3-person dwelling;Due to overland traffic;12.7 3-person dwelling;Due to air traffic;2.4 3-person dwelling;Due to neighbours;9.8 3-person dwelling;From animals;3.3 3-person dwelling;Mechanical causes (including construction);8.3 3-person dwelling;Due to trade and recreational activities;3.7 3-person dwelling;Due to informal urban get-togethers (outdoor drinking);3.5 3-person dwelling;Other causes;1.6 3-person dwelling;Have taken some measure against noise (*);30.8 Dwelling with 4 or more persons;With a noise problem;25.3 Dwelling with 4 or more persons;Due to overland traffic;12.2 Dwelling with 4 or more persons;Due to air traffic;2.2 Dwelling with 4 or more persons;Due to neighbours;8.7 Dwelling with 4 or more persons;From animals;3.1 Dwelling with 4 or more persons;Mechanical causes (including construction);7.5 Dwelling with 4 or more persons;Due to trade and recreational activities;3.2 Dwelling with 4 or more persons;Due to informal urban get-togethers (outdoor drinking);2.3 Dwelling with 4 or more persons;Other causes;1.8 Dwelling with 4 or more persons;Have taken some measure against noise (*);32.0