You need to cite the source of your data on a decline in suicides. The Australian Institute for Health and Welfare, a government agency, says “Over the last decade, the age-standardised suicide rate for males increased from 16.2 deaths per 100,000 population in 2011 to 18.6 in 2020. Female rates also increased from 5.1 deaths per 100,000 population in 2011 to 5.8 in 2020.” https://www.aihw.gov.au/suicide-self-harm-monitoring/data/deaths-by-suicide-in-australia/suicide-deaths-over-time