Svalbard Year

Copper 5year

14

1995

1990

1985

1980

1.70

1975

1.74

1970

1.06

1965

0.66

1960

1.46

1955

0.85

1950

0.26

1945

0.22

1940

0.56

1935

-0.10

1930

0.03

1925

-0.39

1920

-0.93

1915

-0.09

1910

-0.36

1905

-1.52

1900

-1.65

1895

-1.65

1890

-1.64

1885

-1.70

1880

-1.70

1875

-2.01

1870

-1.25

1865

-1.64

1860

-1.61

1855

-1.80

1850

-1.41

1845

-1.77

1840

-1.86

1835

-0.70

1830

-0.54

1825

-0.79

1820

0.14

1815

1.46

1810

2.34

1805

0.86

1800

0.84

1795

1.05

1790

1.17

1785

1.49

1780

2.57

1775

1.65

1770

1.02

1765

0.43

1760

0.93

1755

1.00

1750

-0.03

1745

-0.29

1740

0.22

1735

-0.13

1730

0.07

1725

-0.59

1720

-0.75

1715

-0.98

1710

-1.04

1705

-1.96

1700

-0.91

1695

-1.12

1690

-0.99

1685

-1.18

1680

-0.86

1675

-0.81

1670

-0.29

1665

0.62

1660

0.78

1655

0.42

1650

0.44

1645

0.23

1640

0.42

1635

-0.61

1630

-0.42

1625

-0.13

1620

-0.06

1615

-0.27

1610

-0.60

1605

-0.96

1600

-1.44


Whenever using these data, please cite this
reference: Jacoby and D'Arrigo, 1989;
D'Arrigo and Jacoby, 1992; 1993