Justified multi-value field in MySQL?
I have solved this by the following:

 k | code | t | lower     | upper     | score  
---+------+---+-----------+-----------+-------
 1 | 200E | R |  0.000000 | 93.860000 | 600  
 2 | 200E | R | 93.860000 | 94.060000 | 597  
 3 | 200E | R | 94.060000 | 94.250000 | 594  


So 1NF is now intact!