Japan has gone first to be last having been just overtaken in the last year or two by South Korea on a per capita real GDP basis, PPP. The Lost Decade certainly has taken its toll on Japanese relative prosperity. Singapore overtook Japan in the 1970s – a testament to the Singapore miracle. Hong Kong too overtook Japan on a purchasing power basis in the mid-1990s followed not long after by Taiwan. Singapore is seriously rich.
Source: The Conference Board. 2015. The Conference Board Total Economy Database™, May 2015, http://www.conference-board.org/data/economydatabase/