The majority of accidents over the last 10 years[when?] have occurred during the approach, landing and go-around flight phases. In 2011, 68% (63) of accidents in commercial aviation occurred during these phases of flight.[2] The lack of go-around decision is the leading risk factor in approach and landing accidents, and it is also the primary cause of runway excursions during landing. Yet, less than 5% of unstabilised approaches lead to a go-around.[citation needed] One in ten go-around reports record a potentially hazardous go-around outcome, including exceeded aircraft performance limits or fuel endurance.