PWC: Digital will continue to challenge traditional radio

PWC has released predicted figures for radio revenue for the next 4 years as part if its Global entertainment and media outlook report.

From 2015 to 2020, PWC predicts a 22.2% Combined Annual Growth Rate for digital music streaming revenue and overall total radio revenue will have a 2.1% CAGR.

Am I reading the figures wrong or does that suggest that traditional broadcast radio revenues will have to shrink by 20.1% to equal the overall radio revenue growth rate of 2.1%?