The national account framework is UN SNA 2008. Figures are millions of chained year-2011 New Taiwan dollars (Mil. Ch. 2011 TWD) not seasonally adjusted (NSA). The series start at 1961Q1, 1966Q1 or 1981Q1.
The series reside in the historical catalog (Taiwan » National Accounts » by Expenditure » Quarterly » Constant prices) and include, for example:
Because catalog locations are subject to change, the upper-right search box on DataBuffet.com provides a "find in catalog" mode that accepts a mnemonic.
See also