1. An economy's long box -run trend rate of economic growth in real gross domestic product (GDP) is 2.8% per annum. In 2018, the economy's actual real GDP was equal to its trend level of real GDP. Table 4 shows the economy's actual rate of growth in real GDP over a five-year period.

Table 4

All other things being equal, in which year was the economy likely to experience the most inflationary pressure?