date,co2filtered,co2raw,sensor_temp 01-21_1900,310.27,311.22,6.57 01-21_1901,310.02,309.52,6.57 01-21_1902,310.85,311.08,6.53 01-21_1903,311.28,310.82,6.57 01-21_1904,311.2,311.52,6.57 01-21_1905,310.52,310.17,6.6 01-21_1906,311.05,310.63,6.55 01-21_1907,310.4,310.08,6.58 01-21_1908,311.25,310.68,6.55 01-21_1909,311.47,311.6,6.55 01-21_1910,nan,nan,nan 01-21_1911,nan,nan,nan 01-21_1912,nan,nan,nan 01-21_1913,nan,nan,nan 01-21_1914,nan,nan,nan 01-21_1915,nan,nan,nan 01-21_1916,nan,nan,nan 01-21_1917,nan,nan,nan 01-21_1918,nan,nan,nan 01-21_1919,nan,nan,nan 01-21_1920,nan,nan,nan 01-21_1921,nan,nan,nan 01-21_1922,nan,nan,nan 01-21_1923,nan,nan,nan 01-21_1924,nan,nan,nan 01-21_1925,nan,nan,nan 01-21_1926,nan,nan,nan 01-21_1927,nan,nan,nan 01-21_1928,nan,nan,nan 01-21_1929,nan,nan,nan 01-21_1930,nan,nan,nan 01-21_1931,nan,nan,nan 01-21_1932,nan,nan,nan 01-21_1933,nan,nan,nan 01-21_1934,nan,nan,nan 01-21_1935,nan,nan,nan 01-21_1936,nan,nan,nan 01-21_1937,nan,nan,nan 01-21_1938,nan,nan,nan 01-21_1939,nan,nan,nan 01-21_1940,nan,nan,nan 01-21_1941,nan,nan,nan 01-21_1942,nan,nan,nan 01-21_1943,nan,nan,nan 01-21_1944,nan,nan,nan 01-21_1945,nan,nan,nan 01-21_1946,nan,nan,nan 01-21_1947,nan,nan,nan 01-21_1948,nan,nan,nan 01-21_1949,nan,nan,nan 01-21_1950,nan,nan,nan 01-21_1951,nan,nan,nan 01-21_1952,nan,nan,nan 01-21_1953,nan,nan,nan 01-21_1954,nan,nan,nan 01-21_1955,nan,nan,nan 01-21_1956,nan,nan,nan 01-21_1957,nan,nan,nan 01-21_1958,nan,nan,nan 01-21_1959,nan,nan,nan