Here are my rolls:
4d6 ⇒ (6, 3, 2, 1) = 12 = 11
4d6 ⇒ (6, 4, 1, 6) = 17 = 16
4d6 ⇒ (2, 2, 1, 2) = 7 = 6 <- drop
4d6 ⇒ (5, 3, 3, 1) = 12 = 11
4d6 ⇒ (2, 6, 5, 2) = 15 = 13
4d6 ⇒ (6, 6, 1, 3) = 16 = 15
4d6 ⇒ (1, 2, 1, 2) = 6 = 5 <- drop
4d6 ⇒ (5, 4, 4, 4) = 17 = 13
16, 15, 13, 13, 11, 11