is the other notable industry, accounting for 15% of the region's GDP from March 2000 to 2004. Overall economic growth in the Bay of Plenty averaged 2.1% between March 2000 and 2004, compared with the national rate of 3.5%, although per capita real GDP growth in the five years to March 2003 matched the national growth rate at an averaged 2.3%. In the 2013 Census, the median annual income was $26,200, below the national median of $28,500. Further, 39.3% of people aged 15 years or older earned an annual income of less than $20,000, compared with 38.2% of people nationally. Unemployment was at 9.0% of people 15 years or older, compared with 7.1% nationally. Tourism The Bay of Plenty Region is a popular holiday destination due to the warm and sunny summer climate and public beaches. The region received over 645,000 tourists in 2003, equivalent to one in three visitors to New Zealand coming to the region. Rotorua is a popular destination for international visitors, in particular the surrounding geothermal areas and Māori cultural centres. Tauranga is a popular domestic tourism destination, and also becoming popular internationally. Whale watching has become a popular attraction as the number of whales such as blue whales and humpback whales migrating into bay waters began to recover. Transport The Bay of Plenty Region has of rail network and of roads. The main rail line in the region is the East Coast Main Trunk Railway, which extends from Hamilton in the Waikato region to Kawerau via Tauranga, with the Murupara Branch Railway extending the Kawerau terminus to Murupara, and the Mount Maunganui Branch connecting the Mount Maunganui terminus with the East Coast Main Trunk. Rail networks in the region are used exclusively for freight. The hub of regional economic activity is the Port of Tauranga, with well-established rail and road connections to other parts of the region. Three commercial airports also operate in the Bay of Plenty: Tauranga Airport, Rotorua Airport and Whakatane Airport. Car travel remains the dominant form of transport in the region. In 2002, the number of vehicles owned in the region was 189,000, with an average of 1.51 vehicles per household. Public transport bus services exist only in Tauranga and Rotorua. Significant growth in the Western Bay of Plenty District has seen increased strain on road infrastructure, particularly with increasing traffic congestion in Tauranga. Due to this growth, a new highway