In 1970, the average ACT scores was about an 18. Now it's like a 21. So its about three points higher. If you got a 28 on your ACT in 1970, it would be the equivalent of having a 31 on your ACT now.
It May seem hard , but many people in the past have gotten a PERFECT score of 36. They studied there ASSES Off though , but it's not impossible. If you try....