Robbery trends in the city mirror those of murders and rapes, with no reported incidents from 2010 to 2020. The robbery rate per 1,000 people and the city's contribution to state robbery statistics remained at 0% throughout this period. This absence of robberies might suggest a tight-knit community with low economic disparity or effective crime prevention strategies.

Aggravated assault was the only category of violent crime that showed variation over the years. The city experienced a peak of 6 aggravated assaults in 2011, which represented 0.03% of the state's total. This translates to a rate of approximately 2.72 assaults per 1,000 people for that year. The number of assaults fluctuated in subsequent years, with 4 in 2012 (0.02% of state total), 5 in 2013 (0.02% of state total), and 2 in 2014 (0.01% of state total). From 2017 to 2019, there were no reported aggravated assaults, but in 2020, there was 1 incident, representing less than 0.01% of the state's total. These fluctuations suggest that aggravated assault, while rare, remains the most prevalent form of violent crime in the city.

Examining correlations between violent crime trends and other factors, there appears to be a weak relationship between population density and aggravated assaults. For instance, the peak in assaults in 2011 coincided with one of the highest population densities (1,305 per square mile) recorded in the dataset. However, this correlation is not consistent across all years, suggesting other factors may play a more significant role in violent crime rates.

Applying predictive models to forecast violent crime trends for the next five years (up to 2029), it's likely that the city will continue to experience low levels of violent crime. Based on historical data, we can predict that murders, rapes, and robberies will remain at or near zero. Aggravated assaults may continue to occur sporadically, potentially averaging 1-2 incidents per year, but are unlikely to exceed the peak levels seen in earlier years unless there are significant changes in socioeconomic conditions or population dynamics.

In summary, Hollow Rock has maintained a remarkably low violent crime rate over the past decade, with aggravated assault being the only category showing any significant activity. The consistent absence of murders, rapes, and robberies, combined with the sporadic nature of aggravated assaults, paints a picture of a relatively safe small town. However, the fluctuations in aggravated assaults suggest that ongoing community engagement and law enforcement efforts remain crucial to maintaining this low crime environment.