The percentage of people hitting 100 will remain limited, likely with fewer than 15% of women and 5% of men making it that long in most countries, Olshansky said.

这句话的making it 是固定用法吧，这个that long修饰这个making it吗？  

另外这句话In 2019, a little over 2% of Americans made it to 100, compared with about 5% in Japan and 9% in Hong Kong, Olshansky said.这个make it也是固定用法吧？