function [t,xn,xs,en,es,scale]=ccl4atmhist05;
% CCL4ATMHIST05 Atmospheric history for CCL4
%
% [T,XN,XS,EN,ES,SCALE]=CCL4ATMHIST05 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 = Ascii name of calibration scale
%
% All concentrations are on the SIO-2005 calibration scale
%
% Atmospheric lifetime assumed to be  35.0 years
%
% This file obtained from:
%
%  http://gaslab.ucsd.edu/pub/cfchist/ 
%  http://bluemoon.ucsd.edu/pub/cfchist/ 
%  Created: 07-May-2009 09:30:10
%
%   Stephen J. Walker 
%   Scripps Institution of Oceanography

%      Northern        Southern
% Year Value Error  Value  Error
%      [ppt] [ppt]  [ppt]  [ppt]
%  (1)  (2)   (3)    (4)    (5)
%
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    1.2  0.1
 1922.5   1.4  0.2    1.2  0.1
 1923.5   1.7  0.2    1.4  0.1
 1924.5   1.9  0.2    1.6  0.2
 1925.5   2.2  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   3.1  0.3    2.7  0.2
 1929.5   3.6  0.4    3.0  0.3
 1930.5   4.2  0.4    3.5  0.3
 1931.5   4.8  0.5    4.1  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   7.8  0.7    6.6  0.6
 1936.5   8.9  0.8    7.5  0.6
 1937.5  10.3  1.0    8.6  0.7
 1938.5  11.6  1.1    9.9  0.8
 1939.5  12.9  1.2   11.1  0.9
 1940.5  14.4  1.3   12.4  1.0
 1941.5  16.2  1.5   14.0  1.1
 1942.5  18.5  1.7   15.8  1.3
 1943.5  21.2  1.9   18.0  1.5
 1944.5  24.2  2.2   20.5  1.7
 1945.5  26.7  2.4   23.2  1.9
 1946.5  28.2  2.4   25.3  2.0
 1947.5  30.1  2.5   27.1  2.1
 1948.5  32.5  2.6   29.2  2.2
 1949.5  34.2  2.6   31.2  2.2
 1950.5  35.6  2.6   32.9  2.2
 1951.5  37.3  2.6   34.4  2.2
 1952.5  38.4  2.5   35.9  2.2
 1953.5  39.3  2.5   37.0  2.2
 1954.5  39.7  2.3   37.8  2.1
 1955.5  40.1  2.2   38.3  1.9
 1956.5  40.4  2.0   38.7  1.8
 1957.5  40.6  1.9   39.0  1.8
 1958.5  41.5  1.7   39.5  1.6
 1959.5  42.6  1.4   40.3  1.4
 1960.5  43.7  1.1   41.2  1.2
 1961.5  44.7  1.0   42.2  1.0
 1962.5  45.9  0.9   43.3  0.8
 1963.5  47.6  0.8   44.5  0.8
 1964.5  49.4  0.9   46.1  0.7
 1965.5  50.9  1.0   47.7  0.8
 1966.5  53.0  1.2   49.3  0.9
 1967.5  55.8  1.4   51.4  1.0
 1968.5  59.1  1.5   54.1  1.2
 1969.5  63.4  1.7   57.4  1.2
 1970.5  69.3  1.9   61.7  1.3
 1971.5  74.9  2.3   67.0  1.4
 1972.5  77.6  2.3   71.4  1.6
 1973.5  79.7  2.1   74.3  1.6
 1974.5  83.2  2.1   77.2  1.5
 1975.5  85.2  2.0   80.0  1.4
 1976.5  87.0  1.8   82.1  1.3
 1977.5  89.8  1.7   84.4  1.3
 1978.5  91.9  1.5   86.7  1.2
 1979.5  93.3  1.2   88.6  1.1
 1980.5  94.9  0.9   89.6  0.7
 1981.5  96.4  0.7   90.8  0.7
 1982.5  97.5  1.0   92.3  0.5
 1983.5  98.5  0.9   93.5  0.7
 1984.5  99.8  0.6   95.1  0.7
 1985.5 100.5  0.6   96.6  0.6
 1986.5 101.9  0.9   98.2  0.6
 1987.5 102.5  0.8  100.0  0.6
 1988.5 103.5  0.7  100.6  0.5
 1989.5 104.4  0.6  101.1  0.5
 1990.5 104.9  0.6  102.3  0.5
 1991.5 105.5  0.7  102.5  0.8
 1992.5 104.9  0.7  101.9  0.7
 1993.5 104.0  0.4  101.1  0.2
 1994.5 103.0  0.4  100.3  0.7
 1995.5 102.1  0.4   99.6  0.4
 1996.5 101.1  0.3   98.6  0.4
 1997.5 100.2  0.2   98.0  0.2
 1998.5  99.2  0.2   97.0  0.1
 1999.5  98.2  0.4   96.2  0.2
 2000.5  97.3  0.3   95.4  0.3
 2001.5  96.3  0.2   94.4  0.2
 2002.5  95.3  0.4   93.6  0.5
 2003.5  94.3  0.2   92.5  0.3
 2004.5  93.3  0.2   91.7  0.1
 2005.5  92.4  0.3   90.8  0.2
 2006.5  91.3  0.2   89.7  0.3
 2007.5  90.4  0.2   88.9  0.2
 2008.5  89.3  0.3   87.7  0.3
];

t =data(:,1);
xn=data(:,2);
en=data(:,3);
xs=data(:,4);
es=data(:,5);
scale='SIO-2005';

return
