function [t,xn,xs,en,es,scale]=cfc12atmhist05;
% CFC12ATMHIST05 Atmospheric history for CFC12
%
% [T,XN,XS,EN,ES,SCALE]=CFC12ATMHIST05 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 100.0 years
%
% This file obtained from:
%
%  http://gaslab.ucsd.edu/pub/cfchist/ 
%  http://bluemoon.ucsd.edu/pub/cfchist/ 
%  Created: 07-May-2009 09:30:02
%
%   Stephen J. Walker 
%   Scripps Institution of Oceanography

%      Northern        Southern
% Year Value Error  Value  Error
%      [ppt] [ppt]  [ppt]  [ppt]
%  (1)  (2)   (3)    (4)    (5)
%
data=[
 1931.5   0.0  0.0    0.0  0.0
 1932.5   0.0  0.0    0.0  0.0
 1933.5   0.0  0.0    0.0  0.0
 1934.5   0.0  0.0    0.0  0.0
 1935.5   0.0  0.0    0.0  0.0
 1936.5   0.1  0.0    0.0  0.0
 1937.5   0.1  0.0    0.1  0.0
 1938.5   0.2  0.0    0.1  0.0
 1939.5   0.3  0.0    0.2  0.0
 1940.5   0.4  0.0    0.3  0.0
 1941.5   0.5  0.0    0.4  0.0
 1942.5   0.7  0.0    0.5  0.0
 1943.5   0.9  0.0    0.7  0.0
 1944.5   1.2  0.0    0.9  0.0
 1945.5   1.7  0.0    1.2  0.0
 1946.5   2.3  0.1    1.7  0.0
 1947.5   3.4  0.1    2.4  0.1
 1948.5   4.8  0.1    3.4  0.1
 1949.5   6.1  0.2    4.7  0.1
 1950.5   7.6  0.2    6.0  0.2
 1951.5   9.2  0.2    7.4  0.2
 1952.5  11.0  0.3    9.0  0.2
 1953.5  12.8  0.3   10.7  0.3
 1954.5  15.0  0.3   12.6  0.3
 1955.5  17.4  0.4   14.7  0.4
 1956.5  20.2  0.5   17.1  0.4
 1957.5  23.4  0.5   19.9  0.5
 1958.5  26.8  0.6   23.0  0.5
 1959.5  30.5  0.7   26.3  0.6
 1960.5  35.0  0.8   30.1  0.7
 1961.5  40.0  0.9   34.4  0.8
 1962.5  45.8  1.0   39.4  0.9
 1963.5  52.5  1.1   45.1  1.0
 1964.5  60.4  1.3   51.8  1.2
 1965.5  69.3  1.5   59.5  1.4
 1966.5  79.2  1.7   68.2  1.6
 1967.5  90.3  1.9   77.9  1.8
 1968.5 102.8  2.2   88.8  2.0
 1969.5 116.8  2.5  101.1  2.3
 1970.5 132.0  2.8  114.7  2.6
 1971.5 148.4  3.1  129.6  2.9
 1972.5 166.1  3.4  145.7  3.3
 1973.5 185.8  3.8  163.3  3.7
 1974.5 207.1  4.3  182.5  4.1
 1975.5 228.2  4.6  202.9  4.5
 1976.5 248.1  4.9  223.2  4.9
 1977.5 266.9  5.1  242.7  5.2
 1978.5 284.3  5.4  261.2  5.6
 1979.5 306.1  2.7  273.5  2.2
 1980.5 323.2  3.8  292.3  1.8
 1981.5 339.6  3.4  308.8  2.3
 1982.5 353.4  4.6  325.5  1.8
 1983.5 369.0  5.6  342.6  2.1
 1984.5 385.7  2.8  359.4  2.1
 1985.5 403.4  2.4  378.2  2.0
 1986.5 424.3  3.8  396.5  2.5
 1987.5 444.0  4.1  416.3  3.2
 1988.5 465.4  2.8  435.8  2.8
 1989.5 483.6  3.0  454.4  2.1
 1990.5 497.7  2.8  472.7  2.1
 1991.5 506.0  3.1  487.3  2.4
 1992.5 516.3  2.4  498.3  2.3
 1993.5 523.2  1.6  507.0  1.7
 1994.5 528.5  1.6  514.8  0.2
 1995.5 533.4  0.6  521.0  0.2
 1996.5 537.3  0.9  526.5  0.4
 1997.5 540.1  0.5  530.8  0.3
 1998.5 542.9  0.5  534.3  0.2
 1999.5 544.4  0.7  537.2  0.3
 2000.5 545.9  0.8  539.0  0.1
 2001.5 546.5  0.5  540.6  0.3
 2002.5 546.7  0.5  541.3  0.2
 2003.5 546.7  0.4  541.6  0.4
 2004.5 545.7  0.5  541.5  0.2
 2005.5 544.9  0.9  540.7  0.1
 2006.5 543.1  0.6  539.8  0.2
 2007.5 541.1  0.5  538.1  0.3
 2008.5 538.6  0.5  536.2  0.3
];

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

return