Right. Nearly all. So, a quick look at the top five picks for the 2010 decade:
2011: five long-term players: 100%
2012: four long-term players, plus Griffin Reinhart (37 games): 80%
2013: five long-term players: 100%
2014: four long-term players, plus Michael Dal Colle (112 games): 80%
2015: five long-term players: 100%
2016: four long-term players, plus Olli Juolevi (41 games): 80%
2017: five long-term players: 100%
2018: five long-term players: 100%
2019: four long-term players, plus Alex Turcotte (32 games): 80%
That's 92% long-term NHL players. But definitely not 92% impact players. For example, from the top five in the 2012 draft, only Morgan Rielly is still in the league. (Nail Yakupov, Ryan Murray, Alex Galchenyuk, Griffin Reinhart were the others.)