InterpolatingPolynomial[{{{-70, 2000}, 330}, {{-70, 3000},
   303}, {{-70, 4000}, 280}, {{-70, 4500}, 265}, {{-70, 5000},
   245}, {{-70, 5500}, 220}, {{-70, 6000}, 195}, {{-70, 6500},
   160}, {{-70, 7000}, 120}, {{-70, 7500}, 80}, {{-60, 1500},
   345}, {{-60, 2000}, 344}, {{-60, 2500}, 343}, {{-60, 3000},
   341}, {{-60, 3500}, 341}, {{-60, 4000}, 340}, {{-60, 4500},
   335}, {{-60, 5000}, 330}, {{-60, 5500}, 322}, {{-60, 6000},
   312}, {{-60, 6500}, 302}, {{-60, 7000}, 290}, {{-60, 7500},
   274}, {{-60, 8000}, 250}, {{-60, 8500}, 225}, {{-60, 9000},
   198}, {{-60, 9500}, 158}, {{-60, 10000}, 120}, {{-50, 1500},
   375}, {{-50, 2000}, 376}, {{-50, 2500}, 377}, {{-50, 3000},
   378}, {{-50, 3500}, 378}, {{-50, 4000}, 379}, {{-50, 4500},
   378.5}, {{-50, 5000}, 378}, {{-50, 5500}, 377}, {{-50, 6000},
   375}, {{-50, 6500}, 370}, {{-50, 7000}, 365}, {{-50, 7500},
   360}, {{-50, 8000}, 352}, {{-50, 8500}, 345}, {{-50, 9000},
   340}, {{-50, 9500}, 330}, {{-50, 10000}, 320}, {{-50, 11000},
   280}, {{-50, 11500}, 255}, {{-50, 12000}, 220}, {{-50, 13000},
   145}, {{-50, 13500}, 100}, {{-40, 1500}, 380}, {{-40, 2000},
   380}, {{-40, 2500}, 381}, {{-40, 3000}, 383}, {{-40, 3500},
   385}, {{-40, 4000}, 390}, {{-40, 4500}, 394}, {{-40, 5000},
   398}, {{-40, 5500}, 400}, {{-40, 6000}, 407}, {{-40, 6500},
   410}, {{-40, 7000}, 415}, {{-40, 7500}, 417}, {{-40, 8000},
   419}, {{-40, 8500}, 418}, {{-40, 9000}, 417}, {{-40, 9500},
   415}, {{-40, 10000}, 410}, {{-40, 10500}, 405}, {{-40, 11000},
   396}, {{-40, 12000}, 379}, {{-40, 12500}, 370}, {{-40, 13000},
   355}, {{-40, 13500}, 338}, {{-40, 14000}, 320}, {{-40, 14500},
   300}, {{-40, 15000}, 275}, {{-40, 16000}, 215}, {{-30, 1500},
   400}, {{-30, 2000}, 403}, {{-30, 2500}, 405}, {{-30, 3000},
   410}, {{-30, 3500}, 415}, {{-30, 4000}, 418}, {{-30, 4500},
   420}, {{-30, 5000}, 425}, {{-30, 5500}, 430}, {{-30, 6000},
   435}, {{-30, 6500}, 438}, {{-30, 7000}, 440}, {{-30, 7500},
   442}, {{-30, 8000}, 445}, {{-30, 8500}, 447}, {{-30, 9000},
   450}, {{-30, 9500}, 452}, {{-30, 10000}, 453}, {{-30, 10500},
   455}, {{-30, 11000}, 457}, {{-30, 11500}, 455}, {{-30, 12000},
   450}, {{-30, 12500}, 447}, {{-30, 13000}, 445}, {{-30, 13500},
   442}, {{-30, 14000}, 440}, {{-30, 14500}, 435}, {{-30, 15000},
   427}, {{-30, 15500}, 419}, {{-30, 16000}, 400}, {{-30, 16500},
   380}, {{-30, 17000}, 360}, {{-30, 17500}, 330}}, {f, Q}]