Dirk van Duijvenbode is known as an excellent 180 hitter. The statistics support this, because according to Darts Orakel 'Aubergenius' is the best 180 hitter in the world based on the last twelve months.
When you convert his total of 180's (523) to the number of legs played, it comes down to one 180 per 0.378 legs. On 1000 legs Van Duijvenbode would throw the highest possible score 378 times.
Nobody comes close to the Dutchman in that respect. Michael Smith is in second place with 0.342 per leg, or 342 180's per 1000 legs. The top five also includes Dave Chisnall (0.362), Chris Dobey (0.323) and Ross Smith (0.318).