Based on the chart:

• Between the years 2000 and 2007, A's earnings were consistently higher than B's for all 7 years.
• However, from 2007 to 2010, B's earnings exceeded A's for 3 consecutive years.
• Despite this, A's average earnings over the entire period were still higher than B's average earnings.

Therefore, A had a higher average income compared to B during the given timeframe.