Provence-Alpes-Côte d'Azur Italian, Spanish, Portuguese and Maghrebi. This is the second-highest rate after Île-de-France (Greater Paris), where the figure was around 56%. Since the 1960s, the region has been a major immigration centre into France, mostly due to Mediterranean immigration from countries such as Portugal, Spain, Italy, Algeria, Tunisia and Morocco. Provence-Alpes-Côte d'Azur is divided into 6 departments. These are Alpes-de-Haute-Provence, Hautes-Alpes, Alpes-Maritimes, Bouches-du-Rhone, Var and Vaucluse. The largest cities in the region are Marseille (administrative capital city of the region), Nice, Toulon, and Aix-en-Provence, each with a population exceeding 100,000 inhabitants at the 1999 census. Along with Marseille, Nice is the
Alpes-de-Haute-Provence of 39.4% for the Provence-Alpes-Côte d'Azur region. The National Office of Forests (ONF) manages 86,000 hectares. The main species exploited are Scots pine, black pine, larch, pubescent oak (or white oak), and beech. Fir and spruce are less common. The 2003 heat wave caused the decline of many species of trees, consequently accelerating the return of Mediterranean oaks, alders and linden. Industry is relatively small in terms of business establishments but has several relatively large companies. At the end of 2004 the department had 937 establishments with 17 exceeding fifty employees. This is particularly the case of the historic plant