Almost entirely from digital goods and services, in contrast to physical goods and services, according to Progressive Policy Institute article,
1. Per capita real consumption of physical goods and services, outside of housing and health care, has grown by only 10% since 2000, or an average of 0.6% annually. By comparison, per capita real consumption of digital goods and services has skyrocketed, growing by 64%, or 3.4% annually.
The whole article is short and worth the read.