The means are readily available, and the UK has seen an increase in women chosing more violent means, but it seems that women tend to chose less violent methods.

The office for national statistics has great data. It's particularly useful because they define what they mean.

https://www.ons.gov.uk/peoplepopulationandcommunity/birthsde...

And we also have great data available under the Fingertips system. http://fingertips.phe.org.uk/profile-group/mental-health/pro...