https://www.sbs.com.au/news/factcheck-have-more-than-1000-asylum-...

https://www.sbs.com.au/news/factcheck-have-more-than-1000-asylum-seekers-died-at-sea

Between 2000 and 2007 (the period which includes the introduction of the “Pacific Solution” for asylum seekers travelling by boat under the Coalition government), the database documents 746 reported deaths of asylum seekers. Of those, 363 asylum seekers died at sea while on their way to Australia. As well, 350 were presumed dead (their status is missing at sea with status unknown); 22 died in detention (the majority of those cases were suicide, but there were some deaths of natural causes); and 11 people were returned to Afghanistan and reportedly murdered for being “Australian spies”.

Between 2008 and July 2013 (under Labor), 877 asylum seekers have reportedly died. Of those, 15 committed suicide or died of natural causes in detention centres. So during this period, approximately 862 individuals died trying to reach Australia's mainland to seek asylum.

During the 2000-2007 period of Coalition government, 363 died, with the status of additional 350 individuals unknown.