i have an excel file with it all in if you pm me your email address, doesn't come out too well when i paste the information in here

temp resistance (kOhm)
0 9.75
10 6
20 3.75
30 2.42
40 1.6
50 1.08
60 0.75
70 0.53
80 0.38
90 0.27

y = 0.0036x4 - 0.109x3 + 1.2462x2 - 6.7031x + 15.289