home. Numerous ecological and time series studies have also shown a positive association between gun ownership rates and suicide rates. This association tends to only exist for firearm-related and overall suicides, not for non-firearm suicides. A 2013 review found that studies consistently found a relationship between gun ownership and gun-related suicides, with few exceptions. A 2016 study found a positive association between gun ownership and both gun-related and overall suicides among men, but not among women; gun ownership was only strongly associated with gun-related suicides among women. During the 1980s and early 1990s, there was a strong upward trend in adolescent suicides with a gun, as well as a sharp overall increase in suicides among those age 75 and over. A 2014 systematic review and meta-analysis found that access to firearms was associated with a higher risk of suicide. A 2006 study found an accelerated decline in firearm-related suicides in Australia after the introduction of nationwide gun control. The same study found no evidence of substitution to other methods. Multiple studies in Canada found that gun suicides declined after gun control, but other methods rose, leading to no change in the overall rates. Similarly, in New Zealand, gun suicides declined after more legislation, but overall suicide rates did not change; this might be due to the highly stringent firearm storage laws and very low prevalence of handgun ownership in New Zealand. A study about Canada found no significant correlations between provincial firearm ownership and overall provincial suicide rates. Jumping In the United States, jumping is among the least common methods of suicide (less than 2% of all reported suicides in 2005). In a 75-year period to 2012, there were around 1,400 suicides at the Golden Gate Bridge. In New Zealand, secure fencing at the Grafton Bridge substantially reduced the rate of suicides. Jumping is the most common method of suicide in Hong Kong, accounting for 52.1% of all reported suicide cases in 2006 and similar rates for the years before that. The Centre for Suicide Research and Prevention of the University of Hong Kong believes that it may be due to the abundance of easily accessible high-rise buildings in Hong Kong. Jumping deaths can often be prevented through the construction of fencing or other safety equipment. For example, suicide by jumping into a volcanic crater is a rare method of suicide. Mount Mihara in Japan briefly became a notorious suicide