År

h(x)

B3 = 1930
B4 = 1940
B5: (2 * B4) - B3
B6: (2 * B5) - B4
B7: (2 * B6) - B5
B8: (2 * B7) - B6
B9: (2 * B8) - B7
B10: (2 * B9) - B8
B11: (2 * B10) - B9
C3 = 8
C4 = 6
C5 = 4
C6 = 12
C7 = 8
C8 = 9
C9 = 11
C10 = 7
C11 = 5