The document summarizes volunteering trend data from September 2017. It finds that overall volunteering levels have remained stable, but there is more volatility in younger age groups. Volunteering among 16-34 year olds, particularly young men, peaked in recent years and is now declining. However, volunteering among 25-34 year olds is still increasing, suggesting those who volunteered younger may continue as they age. Volunteering has decreased among 45-54 and 55-64 year olds, who have fewer initiatives targeting them.