year Temp CO2 1959 16.53 2452 1960 16.51 2563 1961 16.5 2577 1962 16.52 2681 1963 16.52 2826 1964 16.7 2989 1965 16.68 3127 1966 16.55 3285 1967 16.58 3399 1968 16.62 3571 1969 16.53 3789 1970 16.55 4064 1971 16.72 4227 1972 16.58 4395 1973 16.56 4633 1974 16.69 4641 1975 16.65 4613 1976 16.72 4880 1977 16.53 5018 1978 16.55 5066 1979 16.55 5348 1980 16.57 5279 1981 16.59 5109 1982 16.56 5069 1983 16.75 5060 1984 16.53 5231 1985 16.51 5404 1986 16.58 5596 1987 16.77 5723 1988 16.74 5947 1989 16.66 6053 1990 16.83 6109 1991 16.78 6178 1992 16.6 6084 1993 16.6 6053 1994 16.73 6199 1995 16.83 6412