% Data source is Meinshausen et al., GMD, doi:10.5194/gmd-10-2057-2017, 2017 % % Atmospheric lifetimes are 44 for CFC-11, 125 for CFC-12, 1278 for SF6 (Kovacs et al., 2017) % % <- Northern Data -> <- Southern Data -> % Year CFC-11 CFC-12 SF6 CFC-11 CFC-12 SF6 % (ppt) (ppt) (ppt) (ppt) (ppt) (ppt) 1931.5 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000 1932.5 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000 1933.5 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000 1934.5 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000 1935.5 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000 1936.5 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000 1937.5 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000 1938.5 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000 1939.5 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000 1940.5 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000 1941.5 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000 1942.5 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000 1943.5 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000 1944.5 0.000000000 0.038867314 0.000000000 0.000000000 0.000000000 0.000000000 1945.5 0.009688290 0.663173319 0.000000000 0.000000000 0.179827114 0.000000000 1946.5 0.143045720 1.985999093 0.000000000 0.023698859 1.285422242 0.000000000 1947.5 0.379218365 3.193964895 0.000000000 0.220803722 2.476063155 0.000000000 1948.5 0.580945173 4.387486320 0.000000000 0.419080845 3.662542203 0.000000000 1949.5 0.782666568 5.581273050 0.000549548 0.617357376 4.848752951 0.000000000 1950.5 0.984557214 6.769593313 0.003847009 0.803206476 5.994921048 0.000000000 1951.5 1.284320135 8.264422444 0.009397031 1.009390929 7.286283933 0.001536690 1952.5 1.751919189 9.972960352 0.019397594 1.356134124 8.915840517 0.010601102 1953.5 2.396171508 11.802868940 0.029399135 1.862701833 10.623781580 0.020599733 1954.5 3.197498849 13.870027240 0.039400408 2.529694010 12.537828600 0.030598368 1955.5 4.181823038 16.192572860 0.049401890 3.353758626 14.686691500 0.040596982 1956.5 5.408367887 18.877954460 0.059403132 4.393167031 17.136322300 0.050595625 1957.5 6.800583775 21.959182680 0.069404672 5.678210925 19.995897560 0.060594229 1958.5 8.109249026 25.232145770 0.079405828 7.025216180 23.136534410 0.070592887 1959.5 9.364839076 28.782123950 0.089957041 8.229409091 26.435978480 0.080041923 1960.5 10.961720980 32.981516050 0.103255528 9.512521657 30.229203850 0.086743257 1961.5 13.098760490 37.798568210 0.119356372 11.236947540 34.674761270 0.100641697 1962.5 15.806523630 43.278169070 0.142106425 13.473262950 39.675387420 0.117891153 1963.5 19.142178090 49.713651640 0.164361543 16.291888010 45.495533750 0.145635149 1964.5 23.108328390 57.245187220 0.188815808 19.735014550 52.354422360 0.171181549 1965.5 27.634690050 65.793446420 0.208818626 23.784909990 60.264583310 0.191178919 1966.5 32.665831640 75.353011050 0.229920965 28.341636240 69.142848910 0.210076955 1967.5 38.316556900 86.107808700 0.255418696 33.416399210 79.112483860 0.224578774 1968.5 44.735303660 98.182966260 0.280476202 39.142961190 90.336360240 0.259519833 1969.5 52.151274820 111.656266200 0.312678543 45.693939430 102.922093500 0.287318198 1970.5 60.613170970 126.422438900 0.338519712 53.293339390 116.875940400 0.311477435 1971.5 69.897071760 142.297806200 0.370362628 61.795945320 131.978603500 0.339633595 1972.5 80.234894440 159.492249000 0.406704311 71.106880930 148.220203100 0.373291446 1973.5 92.060689870 178.472060300 0.444047013 81.684543110 166.042459600 0.405949009 1974.5 105.178774000 199.227131900 0.480312763 93.899031340 185.901366400 0.439683079 1975.5 117.911807200 219.810875300 0.523903675 106.751720900 206.659568300 0.476091548 1976.5 130.343837600 239.408134200 0.572256652 119.117657300 226.586306200 0.516504001 1977.5 142.219969600 258.214583500 0.626388196 131.371426600 245.773827600 0.562714149 1978.5 153.113398300 276.017264300 0.696150017 142.895762800 263.985107500 0.623841447 1979.5 162.202761200 292.347643700 0.812090348 153.074182700 280.640673300 0.727894916 1980.5 170.549832500 307.880370800 0.935045695 161.605210900 296.484130200 0.844940387 1981.5 179.351297200 324.962932600 1.046734711 170.125714200 313.877328300 0.953252570 1982.5 187.950305300 340.530803500 1.169926107 178.604640000 329.755733600 1.070059130 1983.5 196.735262000 357.738289200 1.291227619 185.599386800 347.273901700 1.188758518 1984.5 204.762469700 371.876326200 1.416857943 195.171812600 361.722131600 1.303127876 1985.5 215.873492800 388.188723100 1.561837923 212.193414900 378.345775800 1.438144645 1986.5 227.522075400 407.178327900 1.716048488 217.157292600 397.646115500 1.583933775 1987.5 240.190457900 427.957943400 1.869707646 226.480823700 418.736889000 1.730274813 1988.5 252.058437700 453.778202600 2.044378892 237.593073300 444.868007800 1.895600064 1989.5 262.049348500 472.372671200 2.228929130 251.129280100 463.771674800 2.071049716 1990.5 267.575634500 486.901340600 2.435940646 258.594751500 478.610778900 2.264034718 1991.5 271.230956000 497.774404700 2.654242110 264.349351600 489.794008700 2.465733098 1992.5 273.831070100 509.702792000 2.866500124 267.720798900 502.033162200 2.673475265 1993.5 273.945764200 515.668165900 3.085544448 268.391783500 508.308038500 2.894428964 1994.5 271.795241000 521.738523100 3.309082959 267.460351200 514.689605700 3.110891434 1995.5 269.685428600 528.026399700 3.542366533 266.522277400 521.287811800 3.317607625 1996.5 268.073596200 534.583677500 3.773134326 265.438083100 528.232327800 3.546838149 1997.5 266.453104000 537.731639800 3.994189752 264.130600200 532.194428200 3.785783234 1998.5 264.913731800 540.053176900 4.206509651 262.853994000 535.280876200 4.013465478 1999.5 263.459827100 542.046819000 4.446086436 261.631906900 538.239246100 4.271200839 2000.5 262.132481900 544.180172700 4.651259604 260.207202300 540.585804400 4.476357559 2001.5 260.471526100 544.881386300 4.865827704 258.628138300 541.508641600 4.687866329 2002.5 258.489693000 545.065563300 5.079981286 256.847889800 542.246410300 4.901033791 2003.5 256.166454100 544.639059000 5.302011306 254.659160100 542.062934900 5.113722681 2004.5 253.882504600 543.913651400 5.530738089 252.505094600 541.782337200 5.339654734 2005.5 251.673053900 543.148746600 5.753753167 250.156553300 541.143210100 5.558261370 2006.5 249.401769500 541.513579900 5.992508361 247.927822000 539.786352800 5.791203000 2007.5 247.150505600 539.345084600 6.267930186 245.677153300 537.506884100 6.060076126 2008.5 245.201888600 537.354714000 6.564939520 243.751755800 535.313215200 6.342145730 2009.5 243.121499600 534.793824000 6.843882838 241.800148000 532.758130800 6.612765841 2010.5 241.116221100 532.217861500 7.127375127 239.787397100 530.346071300 6.893030668 2011.5 238.933505200 529.422672600 7.422190116 237.558119900 527.643272300 7.192454112 2012.5 236.870742900 526.639031400 7.715680894 235.542931900 525.028908200 7.481265761 2013.5 235.157609300 523.841159400 8.034125042 233.604126900 522.388791500 7.787615562 2014.5 234.023659400 521.328086600 8.345646183 232.136081000 519.833842900 8.097219954 2015.5 234.023659400 521.328086600 8.345646183 232.136081000 519.833842900 8.097219954