Year	Avg. Global	Avg. Global Temp. from Equation (3)	Avg. Global Temp. from Equation (4)	Avg. Global Temp. from Equation (5)
Year	Temp. Deg. C	Temp. Deg. C	Temp. Deg. C	Temp. Deg. C
1880	13.34	13.34	13.34	13.29
1881	13.38	13.38	13.38	13.33
1882	13.37	13.37	13.37	13.32
1883	13.28	13.27	13.27	13.22
1884	13.20	13.21	13.21	13.16
1885	13.22	13.25	13.25	13.20
1886	13.24	13.27	13.27	13.22
1887	13.20	13.26	13.25	13.20
1888	13.35	13.37	13.36	13.31
1889	13.41	13.43	13.42	13.38
1890	13.15	13.22	13.21	13.16
1891	13.25	13.28	13.28	13.23
1892	13.20	13.25	13.24	13.19
1893	13.18	13.23	13.22	13.17
1894	13.20	13.27	13.26	13.21
1895	13.27	13.32	13.31	13.26
1896	13.41	13.42	13.41	13.37
1897	13.41	13.44	13.43	13.38
1898	13.24	13.30	13.29	13.24
1899	13.35	13.41	13.40	13.35
1900	13.43	13.47	13.47	13.42
1901	13.35	13.43	13.42	13.38
1902	13.26	13.34	13.33	13.28
1903	13.14	13.24	13.23	13.18
1904	13.05	13.17	13.16	13.10
1905	13.23	13.31	13.30	13.25
1906	13.30	13.39	13.38	13.33
1907	13.13	13.19	13.18	13.12
1908	13.08	13.19	13.18	13.12
1909	13.07	13.19	13.18	13.12
1910	13.11	13.23	13.22	13.16
1911	13.06	13.18	13.16	13.11