function [t,xn,xs,en,es,scale]=ccl4atmhist93;
% CCL4ATMHIST Atmospheric history for CCL4
%
% [T,XN,XS,EN,ES,SCALE]=CCL4ATMHIST Returns columnn vectors of:
% T  = Time (mid year)
% XN = Mixing ratio in N. hemisphere [ppt]
% XS = Mixing ratio in S. hemisphere [ppt]
% EN = Uncertainty in N. hemisphere mixing ratio [ppt]
% ES = Uncertainty in S. hemisphere mixing ratio [ppt]
% SCALE = Name of calibration scale against which measurements were made
%
% Atmospheric lifetime assumed to be  35.0 years
%
% All concentrations are on the SIO-93 scale
%
% This files obtained from:
%
%  http://gaslab.ucsd.edu/pub/cfchist/ 
%  Created: 13:02 15-Sep-1999
%
%   Stephen J. Walker 
%   Scripps Institution of Oceanography

% This file created by
% /lab/stephen/CFCHist/UncertAnalysis/write_matlab_history.m
%
%      Northern        Southern
% Year Value Error  Value  Error
%      [ppt] [ppt]  [ppt]  [ppt]
%  (1)  (2)   (3)    (4)    (5)
%
scale='SIO-93';
data=[
 1908.5   0.0  0.0    0.0  0.0
 1909.5   0.0  0.0    0.0  0.0
 1910.5   0.0  0.0    0.0  0.0
 1911.5   0.1  0.0    0.0  0.0
 1912.5   0.1  0.0    0.1  0.0
 1913.5   0.1  0.0    0.1  0.0
 1914.5   0.2  0.0    0.1  0.0
 1915.5   0.3  0.0    0.2  0.0
 1916.5   0.5  0.1    0.3  0.0
 1917.5   0.8  0.1    0.5  0.1
 1918.5   1.0  0.1    0.7  0.1
 1919.5   1.1  0.1    0.9  0.1
 1920.5   1.2  0.1    1.1  0.1
 1921.5   1.3  0.1    1.1  0.1
 1922.5   1.4  0.2    1.2  0.1
 1923.5   1.6  0.2    1.4  0.1
 1924.5   1.9  0.2    1.6  0.2
 1925.5   2.1  0.2    1.8  0.2
 1926.5   2.5  0.2    2.1  0.2
 1927.5   2.8  0.3    2.4  0.2
 1928.5   3.0  0.3    2.6  0.2
 1929.5   3.6  0.3    3.0  0.3
 1930.5   4.2  0.4    3.5  0.3
 1931.5   4.8  0.5    4.0  0.4
 1932.5   5.4  0.5    4.6  0.4
 1933.5   6.0  0.6    5.2  0.4
 1934.5   6.8  0.6    5.8  0.5
 1935.5   7.7  0.7    6.5  0.5
 1936.5   8.8  0.8    7.5  0.6
 1937.5  10.2  0.9    8.6  0.7
 1938.5  11.5  1.1    9.8  0.8
 1939.5  12.8  1.2   11.0  0.9
 1940.5  14.3  1.3   12.3  1.0
 1941.5  16.1  1.4   13.8  1.1
 1942.5  18.3  1.7   15.6  1.3
 1943.5  21.1  1.9   17.8  1.5
 1944.5  24.0  2.2   20.4  1.7
 1945.5  26.5  2.4   23.0  1.9
 1946.5  27.9  2.4   25.1  2.0
 1947.5  29.9  2.5   26.9  2.0
 1948.5  32.2  2.6   28.9  2.1
 1949.5  34.0  2.6   30.9  2.2
 1950.5  35.3  2.6   32.6  2.2
 1951.5  37.0  2.6   34.1  2.2
 1952.5  38.1  2.5   35.5  2.2
 1953.5  39.0  2.4   36.6  2.1
 1954.5  39.3  2.3   37.5  2.0
 1955.5  39.7  2.1   38.0  1.9
 1956.5  40.0  2.0   38.4  1.8
 1957.5  40.3  1.9   38.7  1.7
 1958.5  41.1  1.6   39.2  1.6
 1959.5  42.2  1.3   39.9  1.4
 1960.5  43.3  1.1   40.9  1.2
 1961.5  44.3  1.0   41.9  1.0
 1962.5  45.5  0.9   42.9  0.8
 1963.5  47.2  0.8   44.2  0.8
 1964.5  48.9  0.9   45.7  0.7
 1965.5  50.5  1.0   47.3  0.8
 1966.5  52.5  1.2   48.9  0.9
 1967.5  55.3  1.3   51.0  1.0
 1968.5  58.6  1.5   53.6  1.2
 1969.5  62.9  1.6   56.9  1.2
 1970.5  68.7  1.9   61.2  1.3
 1971.5  74.2  2.3   66.4  1.4
 1972.5  77.0  2.3   70.8  1.6
 1973.5  79.1  2.1   73.7  1.6
 1974.5  82.5  2.0   76.5  1.5
 1975.5  84.5  1.9   79.4  1.4
 1976.5  86.3  1.8   81.4  1.3
 1977.5  89.0  1.7   83.6  1.3
 1978.5  91.1  1.5   86.0  1.2
 1979.5  92.5  1.2   87.8  1.1
 1980.5  94.2  0.9   88.8  0.8
 1981.5  95.6  0.7   89.9  0.7
 1982.5  96.6  1.0   91.5  0.5
 1983.5  97.7  1.0   92.7  0.6
 1984.5  99.0  0.6   94.3  0.6
 1985.5  99.6  0.9   95.8  0.6
 1986.5 101.0  0.9   97.3  0.6
 1987.5 101.6  0.9   99.2  0.6
 1988.5 102.6  0.7   99.7  0.5
 1989.5 103.5  0.6  100.2  0.5
 1990.5 104.0  0.8  101.5  0.5
 1991.5 104.0  1.0  101.2  0.5
 1992.5 103.8  0.7  101.0  0.6
 1993.5 103.1  0.4  100.4  0.1
 1994.5 102.2  0.2   99.8  0.4
 1995.5 101.6  0.3   99.2  0.2
 1996.5 100.4  0.2   98.1  0.2
 1997.5  99.5  0.2   97.4  0.2
 1998.5  98.3  0.2   96.1  0.2
];
t =data(:,1);
xn=data(:,2);
en=data(:,3);
xs=data(:,4);
es=data(:,5);
