+------+------+------+------+-------+-----+-----+
| L | Ma| Mi | J | V | S | D |
+------+------+------+------+-------+-----+-----+
| 10 | 4 | 10 | 14 | 10 | 14 | 14 |
+------+------+------+------+-------+-----+-----+
Tmed = (10+4+10+16+10+14+14) / 7 = 78 / 7 = 11,1 grade