Figures available to the Government in 2016, but only just released, show that 47.1% of women and 43.2% of ESA claimants have tried to kill themselves. This compares to the general population suicide attempts figures of 1 in 15 adults, or 6.7%.
You can find the data here:
https://digital.nhs.uk/catalogue/PUB21748 - scroll down to: “APMS-2014-Chapter-12-Suicidal-Thoughts-Suicide-Attempts-and-Self-Harm-Tables/xls/apms-2014-ch-12-tabs” or go direct to: https://digital.nhs.uk/media/32885/APMS-2014-Chapter-12-Suicidal-Thoughts-Suicide-Attempts-and-Self-Harm-Tables/xls/apms-2014-ch-12-tabs (you may get a safety warning but it is a safe link to official NHS data).