Romansh language develop. During the 19th century the area where the language was spoken declined, but the Romansh speakers had a literary revival and started a language movement dedicated to halting the decline of the language. In the 2000 Swiss census, 35,095 people (of whom 27,038 live in the canton of Grisons) indicated Romansh as the language of "best command", and 61,815 as a "regularly spoken" language. In 2010, Switzerland switched to a yearly system of assessment that uses a combination of municipal citizen records and a limited number of surveys. Based on this yearly system, the number of people aged 15
Romansh language language in the Surses, but has mostly disappeared from the Albula Valley. The highest proportion of habitual speakers is found in Salouf with 86.3%, the lowest in Obervaz with 18.9%. In these areas, many Romansh speakers only speak German with their spouses as an accommodation or because of a habit, though they sometimes speak Romansh to their children. In most cases, this is not because of a will to preserve the language, but because of other reasons such as Romansh having been their own childhood language or a belief that their children will later find it easier to learn additional