Interesting idea
@Antinos to look at the years too. I'm surprised I've never actually listed it out before...
1. Dragon - Legoland (2001)
25. Incredible Hulk - Universal Studios Islands of Adventure (2006)
50. Stealth - Thorpe Park (2008)
100. Racer - Kings Island (2010)
200. Renegade - Valleyfair! (2012)
300. Gold Striker - California's Great America (2013)
400. Intimidator 305 - Kings Dominion (2016)
500. Alpina Blitz - Nigloland (2017)
That said, I do have a chart in my spreadsheet for my total and new coasters per year, which sort of shows how I tend to have "big year, small year, medium year".