are employed in the secondary sector and there is 1 business in this sector. 50 people are employed in the tertiary sector, with 9 businesses in this sector. The historical population is given in the following table: Languages Most of the population () speaks Rhaeto-Romance (75.9%), with German being second most common (23.0%) and Portuguese being third ( 0.6%). By the 19th Century there was a German-speaking minority in Lavin. However the majority speak the Vallader Romansh dialect. Between 1880 and 1941 the Romansh speaking percentage remained the same (83%). In the last decades the Romansh speaking percentage has decreased. In 1990 91% of the population understood Romansh, though some spoke it as a second language, and in 2000 it was 86%. Heritage sites of national significance The abandoned village of Gonda is listed as a Swiss heritage site of national significance. Gonda was first mentioned about 1160 and by the 17th Century was abandoned. In 1983 it was restored. References Zernez Former municipalities of Graubünden Cultural property of national significance in Graubünden Populated places on the Inn (river) Silvretta Alps