Year	All greenhouse gases including aerosols	50 % probability of below 2 °C	50 % probability of below 1.5 °C	All greenhouse gases*
1970	322.407	530	430	291.676
1975	332.361	530	430	302.929
1978	340.274	530	430	311.531
1979	343.48	530	430	314.935
1980	346.528	530	430	318.203
1981	348.993	530	430	320.944
1982	351.621	530	430	323.844
1983	354.172	530	430	326.679
1984	356.803	530	430	329.597
1985	359.284	530	430	332.383
1986	361.952	530	430	335.351
1987	364.583	530	430	338.292
1988	368.518	530	430	342.453
1989	371.388	530	430	345.635
1990	373.393	530	430	348.019
1991	376.378	530	430	350.706
1992	378.021	530	430	352.143
1993	379.519	530	430	353.443
1994	382.057	530	430	355.712
1995	385.01	530	430	358.365
1996	387.677	530	430	360.75
1997	389.591	530	430	362.434
1998	393.123	530	430	365.622
1999	396.301	530	430	368.478
2000	398.227	530	430	370.169
2001	399.895	530	430	372.23
2002	402.249	530	430	374.934
2003	405.248	530	430	378.248
2004	406.965	530	430	380.372
2005	409.583	530	430	383.344
2006	413.025	530	430	385.88
2007	416.08	530	430	388.052
2008	419.74	530	430	390.787
2009	422.438	530	430	392.626
2010	426.126	530	430	395.386
2011	429.507	530	430	397.822
2012	433.016	530	430	400.472
2013	437.339	530	430	403.876
2014	440.862	530	430	406.54
2015	444.536	530	430	409.344