The New Zealand economy continued to grow solidly in the June quarter, posting a 0.8 per cent increase in GDP, taking New Zealand's growth rate for the year to 2.7 per cent, Finance Minister Steven Joyce says. “Our economy continues to outperform many developed nations, underpinned by strong export and domestic demand,” Mr Joyce says. “It is still a challenging international environment, which is why we need to continue with an economic plan that is working for New Zealand.” New Zealand’s growth over the last year has exceeded that of Australia, the United Kingdom, the USA, the Euro area, Japan,…