Rape incidents in the city have been extremely rare. The only reported case occurred in 2016, with 1 incident. This single incident resulted in a rate of 0.44 rapes per 1,000 people based on the 2016 population of 2,284. It also represented 0.06% of the state's total rape cases for that year. In all other years from 2010 to 2020, there were no reported rapes, maintaining a 0 per 1,000 people rate and 0% of state crime.

Robbery trends in Petersburg show a consistent pattern of zero incidents from 2010 to 2020. This stability in the absence of robberies is noteworthy, especially given the population fluctuations. The robbery rate per 1,000 people and the percentage of state crime for robbery have both remained at 0% throughout this period.

Aggravated assault trends show minimal activity. There were no reported cases from 2010 to 2015. In 2016 and 2017, there was 1 incident each year, resulting in rates of 0.44 and 0.39 per 1,000 people respectively. These incidents each represented 0.01% of the state's aggravated assaults. In 2018 and 2019, there were no incidents, but in 2020, there was 1 case, resulting in a rate of 0.34 per 1,000 people.

Examining correlations, there appears to be a weak relationship between population changes and violent crime incidents. As the population decreased from 3,292 in 2010 to 2,919 in 2020, violent crimes remained rare and sporadic. The racial composition of the city, which is predominantly white (85% in 2022), doesn't show a strong correlation with the minimal crime rates.

Applying predictive models based on the limited data available, it's projected that Petersburg will likely continue to experience very low rates of violent crime over the next five years (up to 2029). The sporadic nature of incidents suggests that years with zero violent crimes may alternate with years having 1-2 incidents, maintaining a rate below 1 incident per 1,000 residents annually.

In summary, Petersburg demonstrates remarkably low violent crime rates across all categories. The most significant finding is the consistent absence of murders and robberies, with only isolated incidents of rape and aggravated assault. These trends suggest that Petersburg remains a relatively safe community, with violent crime being a rare occurrence despite minor fluctuations in population.