Robbery trends show a marked improvement. The number of robberies dropped from 9 in 2010 to just 1 in 2020, an 88.89% decrease. The robbery rate per 1,000 residents fell from 0.341 in 2010 to 0.037 in 2020. The city's share of state robberies also decreased from 0.05% to 0.01% over this period. This substantial reduction in robberies indicates enhanced security measures or improved economic conditions in the area.

Aggravated assault cases have shown some fluctuation but with an overall increase. In 2010, there were 7 reported cases, which increased to 8 in 2020, a 14.29% rise. The rate per 1,000 residents remained relatively stable, moving from 0.265 in 2010 to 0.293 in 2020. The city's contribution to state aggravated assault cases remained low but increased slightly from 0.03% to 0.03% over the decade. This slight uptick in aggravated assaults warrants attention from local law enforcement.

Examining correlations, there appears to be a notable relationship between the city's changing racial demographics and violent crime trends. As the white population percentage increased slightly from 73% in 2013 to 75% in 2020, there was a corresponding decrease in overall violent crimes. Concurrently, the Asian population remained relatively stable around 9-11%, while the Black population decreased from 4% to 3% during this period. These demographic shifts coincide with the general downward trend in violent crimes, suggesting a possible correlation between racial composition and crime rates in the city.

Applying predictive models based on historical trends, we can forecast that by 2029 (five years from now), Roselle may see a further reduction in overall violent crimes. The murder rate is likely to remain very low, potentially returning to zero in some years. Rape incidents are projected to stabilize around 3-4 cases annually. Robberies may continue their downward trend, potentially reaching near-zero levels. Aggravated assaults might show a slight increase, potentially reaching 9-10 cases per year.

In summary, Roselle has experienced a notable overall reduction in violent crimes from 2010 to 2020, with significant improvements in robberies and rape incidents. While murders have seen a slight uptick in recent years, the numbers remain very low. The slight increase in aggravated assaults warrants continued vigilance. The city's changing demographic composition appears to correlate with these crime trends, suggesting a complex interplay between population characteristics and public safety. As Roselle continues to evolve, maintaining and enhancing current safety measures will be crucial in sustaining this positive trajectory in violent crime reduction.