Does anyone have any idea what percentage of diamomds are those who stay 60 nights/30 stays or spend 12,000 USD per year?

Adopting the theory that the new Diamond Reserve tier is, in part, to differentiate those who are loyal to the brand and 'earn' Diamond status as opposed to those who acquire Diamond status through a credit card, it would be interesting to know what the "4% of current Diamond members" would be if the new DR criteria were based on what it currently takes to 'earn' Diamond.