**********************************************************************
*** Atmospheric CO2 concentrations (ppmv) derived from flask air   ***
*** samples collected at Estevan Point, Canada                     ***
*** Source: L.P. Steele                                            ***
***              P.B. Krummel                                      ***  
***              R. L. Langenfelds,                                ***
***              Atmospheric, Research, Commonwealth Scientific,   ***
***              And Industrial Research Organisation,             ***
***              Aspendale, Victoria,                              *** 
***              Australia  3195                                   ***                   
***                                                                ***   
*** December 2002                                                  ***
***                                                                ***
**********************************************************************

	Jan. 	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Ann. Ave.

1993							354.28	349.53	350.72	355.79	357.62	357.95	
1994	360.19	362.18	362.48	362.21	362.63	361.02	356.42	352.52	352.69	357.38	361.28	362.69	359.47
1995	365.57	366.94	365.82	365.8	365.67	362.55	356.98	352.72	354.49	359.66	361.85	361.97	361.67
1996	363.54	364.73	365.01	366.14	366.86	365.25	360.8	355.7	355	359.67	363.62	365.03	362.61
1997	367.42	368.34	367.34	368.03	368.57	365.12	358.86	355.06	356.96	361.97	365.28	366.19	364.1
1998	367.89	369.21	368.74	369.41	369.86	367.23	362.44	358.45	360	365.71	369.15	369.89	366.5
1999	371.58	372.96	372.67	373.17	373.68	370.37	364.4	359.81	360.89	366.79	370.31	370.52	368.93
2000	372.2	373.91	374.06	374.28	373.62	371.59	369.16	365.8	365.76	371.2	374.16	373.21	371.58
2001	374.82	376.21	376.02	376.72	375.09	371.76	368.3	363.89	364.2	370.37	374.36	375.33	372.26

Monthly values are expressed in parts per million (ppm) and reported in the WMO CO2 
Mole Fraction Scale (Zhao et al., 1997, J. Geophys. Res. 102 , 5885-5894). Monthly 
values are calculated as the mean of the daily values from a smooth curve fit to the data 
using curve-fitting routines described by Thoning et. al., 1989, (J. Geophys. 
Res. 94, 8549-8565). Annual values are the arithmetic means of the 12 monthly values.