Table:
text: 1984–85 Northern Premier League
Final table
Final table
Position_ Team Played Drawn Lost Goals_For Goals_Against Goal_Difference Points_1
11 Gainsborough Trinity 42 14 14 72 73 −1 56
12 Southport 42 9 18 65 66 −1 54
13 Matlock Town 42 9 19 56 66 −10 51
14 Oswestry Town 42 9 19 59 75 −16 51
15 Mossley 42 9 19 45 65 −20 51
16 Goole Town 42 11 18 60 65 −5 50
17 Rhyl 42 14 17 52 63 −11 47
18 Morecambe 42 14 17 51 67 −16 47
19 Chorley 42 10 20 47 63 −16 46
20 South Liverpool 42 15 18 43 71 −28 42
21 Grantham 42 13 21 41 69 −28 36 2
22 Buxton 42 6 28 38 79 −41 30

Question: What was the goal difference in Northern Premier League 1984–85 when points were 1 51 and goals conceded less than 66?

Question: What was the goal difference for 22nd place in Northern Premier League 1984-85?

Question: What is the average loss for Matlock Town team in Northern Premier League 1984-85 when conceding goals is higher than 66?