Rank data in Tertiles

[ivanpersie]

Hi there, i have a long list of data that i want to divide in 3 equal portions (With two cut off points). How can i program this in Sas.

For instance if the data is  1 2 3 4 5 6 7 8 9 19 30 89 78 98.

[Ksharp]

Check proc rank + ties=dense  ;