function [t,xn,xs,en,es,scale]=cfc113atmhist98;
% CFC113ATMHIST98 Atmospheric history for CFC113 on SIO-1998 calibration scale
%
% [T,XN,XS,EN,ES,SCALE]=CFC113ATMHIST98 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
%
% All concentrations are on the SIO-1998 calibration scale
%
% Atmospheric lifetime assumed to be  85.0 years
%
% Walker, S. J., R. F. Weiss and P. K. Salameh, Reconstructed histories of
%         the annual mean atmospheric mole fractions for the halocarbons
%         CFC-11, CFC-12, CFC-113 and carbon tetrachloride. Journal of 
%         Geophysical Research, 105, C6, 14,285-14,296, 2000
%
% This file obtained from:
%
%  http://gaslab.ucsd.edu/pub/cfchist/ 
%  Created: 19-July-2004
%
%   Stephen J. Walker 
%   Scripps Institution of Oceanography

%
%      Northern        Southern
% Year Value Error  Value  Error
%      [ppt] [ppt]  [ppt]  [ppt]
%  (1)  (2)   (3)    (4)    (5)
%
scale='SIO-1998';
data=[
 1958.5   0.0  0.0    0.0  0.0
 1959.5   0.0  0.0    0.0  0.0
 1960.5   0.0  0.1    0.0  0.0
 1961.5   0.1  0.1    0.1  0.1
 1962.5   0.3  0.1    0.1  0.1
 1963.5   0.5  0.1    0.3  0.1
 1964.5   0.8  0.2    0.5  0.1
 1965.5   1.1  0.2    0.8  0.2
 1966.5   1.5  0.2    1.1  0.2
 1967.5   2.0  0.2    1.5  0.2
 1968.5   2.6  0.2    2.0  0.2
 1969.5   3.4  0.3    2.6  0.2
 1970.5   4.2  0.3    3.3  0.3
 1971.5   5.1  0.3    4.1  0.3
 1972.5   6.2  0.3    5.0  0.3
 1973.5   7.5  0.3    6.1  0.3
 1974.5   9.0  0.3    7.4  0.3
 1975.5  10.6  0.3    8.8  0.4
 1976.5  12.5  0.4   10.4  0.4
 1977.5  14.6  0.4   12.2  0.4
 1978.5  17.0  0.4   14.3  0.4
 1979.5  19.6  0.4   16.6  0.5
 1980.5  22.6  0.4   19.3  0.5
 1981.5  25.9  0.4   22.2  0.6
 1982.5  29.2  0.4   25.3  0.6
 1983.5  33.0  0.4   28.1  0.4
 1984.5  37.9  0.5   31.4  0.4
 1985.5  44.0  0.5   36.0  0.4
 1986.5  48.2  1.2   41.0  0.6
 1987.5  55.7  1.5   47.0  0.9
 1988.5  63.6  1.2   53.3  0.8
 1989.5  69.7  1.1   59.7  0.7
 1990.5  75.6  1.0   66.1  1.1
 1991.5  81.0  1.4   71.2  0.8
 1992.5  83.8  0.9   76.4  1.2
 1993.5  84.6  0.4   79.8  0.2
 1994.5  84.5  0.5   81.6  0.2
 1995.5  84.3  0.1   82.3  0.1
 1996.5  83.8  0.3   82.6  0.1
 1997.5  83.4  0.2   82.8  0.2
 1998.5  83.1  0.2   82.7  0.1
 1999.5  82.4  0.2   82.2  0.1
 2000.5  82.0  0.2   81.7  0.2
 2001.5  81.2  0.2   81.1  0.2
 2002.5  80.5  0.2   80.4  0.2
 2003.5  79.8  0.2   79.8  0.2
 ];
t =data(:,1);
xn=data(:,2);
en=data(:,3);
xs=data(:,4);
es=data(:,5);