Australia...

In 1997 there were 28,791 missing persons reported to Australian police services, compared to 29,141 in the current year. Although this represents an increase of 350 cases in absolute numbers, the rate of increase is less than the rate of growth in the Australian general population. The national rate of missing persons per 1,000 persons in the general population decreased from 1.554 in 1997 to 1.537 in the current year, a decline of 1.1%.
http://www.missingpersons.gov.au/statistics.htm
National Missing Persons Unit - Missing Person Statistics

United Kingdom...

According to Home Office estimates, about 210 000 people are reported missing in the UK each year. The vast majority return safe and sound within 72 hours - but thousands do not; the distress experienced during this time is when families need us most. State agencies such as the police are sometimes unable to help, leaving NMPH to fill the gap. NMPH receives thousands of missing persons reports every year, but on a positive note the charity helps to resolve 70% of cases it works on. Its helplines handle more than 150 000 calls per year.
http://www.missingpersons.org/factfile.asp
National Missing Persons Helpline (0500 700 700) - Fact file

Canadian...

Every year, Canadian police receive about 100,000 reports of persons who have gone missing. Law enforcement agencies use the Canadian Police Information Centre (CPIC) to record and report missing persons cases nationally.

People of all ages may be missing for a number of reasons – for example, intentionally (either as a deliberate disappearance or as a runaway), as a result of mental illness or accident, parental abandonment or abduction, or as a consequence of kidnap or other foul play.

Many mechanisms already exist for providing assistance in different types of case – for example, Child Find, and the Alzheimer’s Society’s system for notifying police. Of the 100,000 persons reported missing each year, the overwhelming majority return or are found very quickly. Nevertheless, the RCMP estimate that, a year after being reported missing, around 4,800 people are still missing, with an average increase of around 270 new, long-term missing persons each year.
http://72.14.207.104/search?q=cache:...ient=firefox-a
Missing Persons Index

American...

US information seems to be State...so...I'm not going to bother listing each State statistics...


Not to be unsympathetic to this particular person but if she had a ' relationship ' with this guy ( as per Imitation's post ) I can think of 1,000,000 other victims who went missing by no measure of their own fault.

Eg

EDIT: just read about her death...a loss...lessen : pick your friends more carefully!