Final answer:
Services are the largest single component of GDP, making up over 60 percent and reflecting a shift towards a service-oriented economy.
Step-by-step explanation:
The largest single component of the supply side of GDP, representing over half of GDP, is services. This sector includes a wide range of industries such as healthcare, education, and financial services, and it accounts for over 60 percent of the GDP. Over the years, services have seen consistent growth as a portion of GDP, reflecting a shift away from a manufacturing-based economy to one that is more service-oriented.