Table:
text: 2006 in Brazilian football
Campeonato Brasileiro Série A
Campeonato Brasileiro Série A
Position_ Team Points Played Drawn Lost Against Difference
13 Atlético-PR 48 38 9 16 62 - 1
14 Juventude 47 38 8 17 54 - 10
15 Fluminense 45 38 12 17 58 - 10
16 Palmeiras 44 38 8 18 70 - 12
17 Ponte Preta 39 38 7 19 65 - 20
18 Fortaleza 38 38 13 16 62 - 23
19 São Caetano 36 38 11 18 53 - 16
20 Santa Cruz 28 38 7 24 75 - 34

Question: What is the difference between - 20 and a position less than 17 in 2006 in Brazilian football?