At first glance, it appears that residents are paying higher mandatory fees than nonresidents. From 2011 onwards, the chart gives the impression that residents are paying twice as much as nonresidents. However, this chart is incredibly misleading.
The title of Figure 9 is “The University of California Has Significantly Increased Undergraduate Mandatory Fees.” If you disregard the misleading graph, the actual numbers show that undergraduate mandatory fees increased for residents from $6,141 (2005-06) to $12,240 (2015-16). For nonresidents, their undergraduate mandatory fees increased from $23,961 (2005-06) to $36,948 (2015-16). So, in 10 years, the undergraduate mandatory fees increased by $6,099 for residents and $12,987 for nonresidents. In other words, undergraduate mandatory fees increased for residents by half as much as it did for nonresidents. Figure 9 will give you the opposite impression.