2020	2010	2000	1990	1980	1970	1960
b	0.0273	0.0288	0.0285	0.0237	0.0241	0.0375	-0.0365
c	-55.8	-58.5	-58.0	-	-50.2	-73.7	72.3
ti = c/ − b	2042	2029	2030	-	2080	1966	1983
Smax (ppm)	649	573	581	∞	962	363	331
R 2	0.992	0.988	0.980	0.962	0.906	0.648	0.014
Measured CO2 (Jan. Avg.)	413	389	369	354	338	325	316
10-Year % Rise (over 280 ppm base)	22.8%	21.7%	21.0%	26.9%	28.7%	23.7%	-