Gas age 	CO2 (ppmv)
2342	284.7
3634	272.8
3833	268.1
6220	262.2
7327	254.6
8113	259.6
10123	261.6
11013	263.7
11326	244.8
11719	238.3
13405	236.2
13989	225.3
17695	182.2
19988	189.2
22977	191.6
26303	188.5
27062	191.7
31447	205.4
33884	209.1
39880	209.1
44766	189.3
47024	188.4
48229	210.1
49414	215.7
51174	190.4
57068	221.8
57799	210.4
63687	195.4
65701	191.4
66883	195
72849	227.4
75360	229.2
78995	217.1
80059	221.8
82858	231
84929	241.1
85727	236.4
86323	228.1
87180	214.2
88051	217
89363	208
91691	224.3
92460	228.4
95349	232.1
99842	225.9
100833	230.9
101829	236.9
103372	228.2
105213	236.9
106203	230.7
108308	238.2
108994	245.7
110253	251.3
111456	256.8
112577	266.3
113472	261.4
114082	274.6
114738	273.3
116175	262.5
117519	267.6
118396	273.8
119273	272
120002	265.2
120652	277.7
121961	272.2
122606	276.5
123815	268.7
123858	266.6
124306	266.3
124571	279.8
124876	277.2
125746	273.8
126023	267.1
126475	262.5
126809	262.6
127445	275.4
128300	274.1
128399	287.1
128652	286.8
129007	282.7
129411	264.1
129755	263.4
130167	259
131789	240.4
133334	224
134205	208.9
135003	204.6
135683	198.1
135976	201.8
136359	202.5
136659	195.9
137383	194.4
137694	193.4
138226	190.2
139445	192.3
141312	196.5
142357	190.4
145435	197
150303	191.9
154471	189
155299	185.5
160494	204.4
162996	191.6
165278	183.8
169870	197.9
172596	197.8
175440	190.3
176271	190.1
178550	207.7
180779	213.2
181617	217.7
183355	199.8
185063	203.5
187199	210.7
189335	231.4
191057	231.5
192632	218
195625	220.1
199025	242.6
202212	251
203191	239.1
204283	247.7
205148	244.4
205715	232.2
206119	228.7
207991	238.2
209414	242.2
210022	244.6
210830	247.3
211005	252
212281	257.4
214153	251.2
215041	241.4
215593	240.3
215879	242.7
216459	247.5
217009	251.7
217271	251.2
217676	245.4
218342	240.5
219680	212.2
220182	216.2
220760	207.2
221054	208.9
221612	205.7
222958	203.4
223446	215.7
224630	236.9
225299	234.5
225509	233.1
225888	224.5
226710	232.4
227384	233.9
227840	241.7
230703	245.2
231382	252.2
231990	241.4
232570	247.4
233102	243.1
233646	239.2
234126	245.7
234470	245.9
234781	247.4
235213	252.9
236236	259.8
237831	279
238935	263.8
239250	252.4
239545	249.9
240201	230.4
240577	219.4
242068	214.7
243653	200.2
244215	213.9
244863	195.4
245483	196.7
247447	199
248087	201.9
248980	204
250461	203.9
251521	209.7
252959	208.9
253880	214.7
255233	228.2
256053	199.9
256501	211.7
257247	188.7
258477	194.2
259228	198.9
259958	184.7
260754	190.4
261595	193.9
262411	194.2
263207	198.4
264046	193.2
264834	202.2
266492	211
267434	215.4
268679	223.7
270680	231.4
273012	226.4
274445	230.4
275218	231
277925	220.4
278602	217.2
279543	207.7
282301	212.7
283492	213.2
286217	224.4
287846	236.2
290571	240.2
291769	240.7
292474	250.2
293676	244.9
294615	225.9
295849	227.9
297131	233.2
298051	237.9
299020	239
299877	241.9
300646	251.7
301496	256.8
302456	257.2
303334	246.9
303953	272.7
304590	251.7
305306	244.7
307131	255.9
308101	249.2
310039	256.3
310930	260.4
311774	260.3
313493	266.3
315143	266.2
315940	270.2
316681	271.9
317445	275.2
318980	265
319754	271.8
320378	272.7
321386	273.2
322111	282.4
322582	289.2
322827	288.4
323485	298.7
324189	278.2
324991	285.8
325527	278.7
326239	270.5
327114	255.7
328097	241.9
329267	239.7
330208	234.2
332293	250.2
333627	200.7
335290	205.2
336972	204.9
340165	220.4
342998	221.2
344735	216.2
347610	209.2
350765	193
352412	186.2
356838	201.2
359688	206.4
362766	201.9
366221	214.7
369563	229.7
373014	227
374561	240
378194	246.9
379633	245.9
384909	264.7
386579	259.3
390589	255.2
392451	250.2
394628	266.3
396713	274.7
400390	278
405844	279.7
409022	283.7
410831	276.3
414085	285.5