From glastofeed:
2002: Sold out in 8 weeks
2003: Sold out in 18 hours
2004: Sold out within 24 hours
2005: Sold out in less than 3 hours
2007: Sold out in 1 hour 45 minutes (registration system introduced)
2008: Sold out in 11.5 weeks (by opening day Friday)
2009: Sold out in 4 months (nearly five months in advance)
2010: Sold out in 12 hours
2011: Sold out in 4 hours
2013: Sold out in 1 hour 40 minutes
2014: Sold out in 1 hour 27 minutes
Coach: Sold out in 30 minutes
2015: Sold out in 25 minutes
Coach: Sold out in 15 minutes
2016: Sold out in 30 minutes
Coach: Sold out in 20 minutes
2017: Sold out in 50 minutes
Coach: Sold out in 22 minutes
2019: Sold out in 36 minutes
Coach: Sold out in 29 minutes
2020: Sold out in 33 minutes
Coach: Sold out in 27 minutes
2023: – Sold out in 61 minutes
Coach: Sold out in 22 minutes
The 2008 speed doesn't surprise as '07 was a moist one (made bearable by the joy my four-year-old's mud fiend mentality)
2009 is a surprise after the vintage year (IMO) of 2008 (expanded site, 1st year for the Park I think)