Most other provinces have achieved growth between 15 and 20%, with slower growth only in the established industrial centers of Da Nang (14.8%) and Khánh Hòa Province (13%). The region's average industrial growth rate was 16.3% per year from 2000 to 2007, making the main driving force of the economy. Da Nang has a relatively diversified industrial sector including textiles, fabric, fertilizer, cement, soap, paper, pharmaceuticals etc. Khánh Hòa's industrial sector is still more reliant on basic industries such as food and seafood processing and beverages, shipbuilding, etc. The province also benefited significantly from investment related to the former Russian naval base at Cam Ranh, to which around 30 factories were attached. Qui Nhơn is the region's third largest industrial center. It has been able to capitalize on its advantage as a gateway to the Central Highlands to develop resource-based industries (wood processing and stone processing) and a major furniture manufacturing cluster. Other industries are more dispersed, such as construction materials and basic food processing. New industrial centers are currently being developed in the economic zones: Chu Lai Economic Zone in southern Quảng Nam, nearby Dung Quat Economic Zone (with Dung Quất Refinery) in northern Quảng Ngãi Province, Nhơn Hội Economic Zone in Qui Nhơn, and Van Phong Economic Zone in northern Khánh Hòa Province. All four zones have large areas of land, major infrastructure and industrial projects. However, in contrast to the smaller industrial parks, they are not limited to industrial sectors. Vietnam's main north-south transport corridors run through the whole South Central Coast region. The North–South Railway runs along the region, with Reunification Express stops at Đà Nẵng Railway Station, Diêu Trì Railway Station, and Nha Trang Railway Station. Stations with less frequent stops are Tam Kỳ Railway Station, Quảng Ngãi Railway Station, Quy Nhơn Railway Station, Tuy Hòa Railway Station, Tháp Chàm Railway Station, Mương Mán Railway Station, as well as several local railway stations. The two-lane National Route 1 connects all major cities of the region to the rest of the country (Quy Nhơn and Nha Trang by extension 1D and 1C).