. sysuse auto, clear
(1978 Automobile Data)

. su weight, detail

                        Weight (lbs.)
-------------------------------------------------------------
      Percentiles      Smallest
 1%         1760           1760
 5%         1830           1800
10%         2020           1800       Obs                  74
25%         2240           1830       Sum of Wgt.          74

50%         3190                      Mean           3019.459
                        Largest       Std. Dev.      777.1936
75%         3600           4290
90%         4060           4330       Variance       604029.8
95%         4290           4720       Skewness       .1481164
99%         4840           4840       Kurtosis       2.118403

. di r(p90)
4060

. list make weight if weight == r(p90)

     +-----------------------+
     | make           weight |
     |-----------------------|
 30. | Merc. Cougar    4,060 |
 35. | Olds 98         4,060 |
     +-----------------------+

. list make weight if weight == 4060

     +-----------------------+
     | make           weight |
     |-----------------------|
 30. | Merc. Cougar    4,060 |
 35. | Olds 98         4,060 |
     +-----------------------+