IPOs have precipitously declined since the 90s. In 1999, there were 486 IPOs. There are now approximately 190 per year. [1]
[1] https://www.statista.com/statistics/270290/number-of-ipos-in...
[1] https://www.statista.com/statistics/270290/number-of-ipos-in...
[1] https://theweek.com/articles/770020/americas-disappearing-ip...
[2] https://www.youtube.com/watch?v=sC7ht0CAQsk&feature=emb_titl...