('Atmospheric CO2 conc. at Mauna Loa, ppmv
((1959 316.00)
(1960 316.91)
(1961 317.63)
(1962 318.46)
(1963 319.02)
(1964 319.52)
(1965 320.09)
(1966 321.34)
(1967 322.13)
(1968 323.11)
(1969 324.60)
(1970 325.65)
(1971 326.32)
(1972 327.52)
(1973 329.61)
(1974 330.29)
(1975 331.16)
(1976 332.18)
(1977 333.88)
(1978 335.52)
(1979 336.89)
(1980 338.67)
(1981 339.95)
(1982 341.09)
(1983 342.75)
(1984 344.44)
(1985 345.86)
(1986 347.14)
(1987 348.99)
(1988 351.44)
(1989 352.94)
(1990 354.19)
(1991 355.62)
(1992 356.36)
(1993 357.10)
(1994 358.86)
(1995 360.90)
(1996 362.58)
(1997 363.84)
(1998 366.58)
(1999 368.30)
(2000 369.47)
(2001 371.03)
(2002 373.07)
(2003 375.61)
))