Growing natural market, growing market share in Australia, any form of growth in other target markets. You say 20% isn't sustainable, but I think it certainly is for 2 years at least. Then you might be right, or it might keep going gangbusters. I will reassess my investment after every announcement and once growth slows to levels that no longer justify the SP I will sell. But while they are miles ahead of this rate I see no logic for penalising them at present and missing out on more gains