date,co2filtered,co2raw,sensor_temp 08-06_1900,nan,nan,nan 08-06_1901,nan,nan,nan 08-06_1902,nan,nan,nan 08-06_1903,nan,nan,nan 08-06_1904,nan,nan,nan 08-06_1905,nan,nan,nan 08-06_1906,nan,nan,nan 08-06_1907,nan,nan,nan 08-06_1908,nan,nan,nan 08-06_1909,nan,nan,nan 08-06_1910,nan,nan,nan 08-06_1911,nan,nan,nan 08-06_1912,nan,nan,nan 08-06_1913,nan,nan,nan 08-06_1914,nan,nan,nan 08-06_1915,nan,nan,nan 08-06_1916,nan,nan,nan 08-06_1917,nan,nan,nan 08-06_1918,nan,nan,nan 08-06_1919,nan,nan,nan 08-06_1920,nan,nan,nan 08-06_1921,nan,nan,nan 08-06_1922,nan,nan,nan 08-06_1923,nan,nan,nan 08-06_1924,nan,nan,nan 08-06_1925,nan,nan,nan 08-06_1926,nan,nan,nan 08-06_1927,nan,nan,nan 08-06_1928,nan,nan,nan 08-06_1929,nan,nan,nan 08-06_1930,nan,nan,nan 08-06_1931,nan,nan,nan 08-06_1932,nan,nan,nan 08-06_1933,nan,nan,nan 08-06_1934,nan,nan,nan 08-06_1935,nan,nan,nan 08-06_1936,nan,nan,nan 08-06_1937,nan,nan,nan 08-06_1938,nan,nan,nan 08-06_1939,nan,nan,nan 08-06_1940,nan,nan,nan 08-06_1941,nan,nan,nan 08-06_1942,nan,nan,nan 08-06_1943,nan,nan,nan 08-06_1944,nan,nan,nan 08-06_1945,nan,nan,nan 08-06_1946,nan,nan,nan 08-06_1947,nan,nan,nan 08-06_1948,nan,nan,nan 08-06_1949,nan,nan,nan 08-06_1950,nan,nan,nan 08-06_1951,nan,nan,nan 08-06_1952,nan,nan,nan 08-06_1953,nan,nan,nan 08-06_1954,nan,nan,nan 08-06_1955,nan,nan,nan 08-06_1956,nan,nan,nan 08-06_1957,nan,nan,nan 08-06_1958,nan,nan,nan 08-06_1959,nan,nan,nan