Name: Total column ozone Units: DU toms+omi+omps Missing: -9999.0 Month: April Year Global 90S--60S 60S--30S 30S--10S 10S--10N 10N--30N 30N--60N 60N--90N 1979 310.34 299.39 292.35 265.53 262.56 295.28 383.62 438.66 1980 307.29 302.59 297.06 258.03 261.47 276.91 380.56 451.96 1981 306.74 296.62 290.74 262.69 261.88 289.59 379.48 426.14 1982 308.93 298.81 286.44 265.91 256.62 296.11 381.81 451.82 1983 301.21 300.72 290.80 260.95 258.86 278.31 364.60 420.53 1984 303.62 287.86 286.68 260.97 252.89 287.94 376.79 437.61 1985 299.12 284.80 282.31 256.53 266.94 276.66 356.64 442.45 1986 298.71 275.71 278.77 255.55 255.70 287.66 367.42 429.39 1987 302.55 291.00 281.16 260.83 253.75 287.66 378.97 426.88 1988 299.26 285.02 281.52 258.63 259.75 276.96 362.03 444.63 1989 304.42 283.19 286.35 267.62 264.50 293.82 365.73 423.98 1990 299.42 282.97 286.95 263.74 272.81 283.62 357.82 382.88 1991 301.96 279.02 279.66 258.77 261.49 289.81 373.06 428.67 1992 297.82 289.93 286.14 259.78 255.17 283.16 360.06 405.60 1993 288.17 281.18 278.79 255.07 262.65 273.17 336.88 370.18 1994 290.96 279.80 272.79 250.14 247.02 278.91 352.89 424.01 1995 -9999.00 -9999.00 -9999.00 -9999.00 -9999.00 -9999.00 -9999.00 -9999.00 1996 -9999.00 -9999.00 -9999.00 -9999.00 -9999.00 -9999.00 -9999.00 -9999.00 1997 288.90 285.66 274.38 254.26 264.59 274.26 345.83 358.99 1998 297.80 281.19 279.13 253.64 251.90 283.96 368.30 431.26 1999 296.22 283.09 275.24 256.48 266.41 276.31 356.91 421.95 2000 295.85 281.13 274.96 262.49 264.47 288.24 352.15 393.38 2001 298.69 280.85 279.32 259.92 255.31 288.89 363.08 422.20 2002 298.38 274.78 280.25 261.60 271.10 281.62 355.90 412.86 2003 299.93 279.40 281.35 259.31 257.87 289.63 367.05 418.53 2004 296.09 286.12 277.16 255.85 265.56 277.81 357.85 409.68 2005 290.05 278.58 271.99 250.45 247.31 278.59 352.39 414.36 2006 291.76 285.54 270.47 248.35 258.13 276.92 352.61 418.31 2007 291.08 272.54 272.78 253.11 251.54 282.44 357.77 391.41 2008 290.51 280.58 274.79 254.98 262.78 273.17 343.06 399.29 2009 292.84 275.30 272.75 254.42 257.71 281.09 355.05 406.56 2010 298.72 291.97 280.05 257.77 247.95 281.21 376.24 417.92 2011 293.29 286.61 277.30 259.66 260.26 281.40 345.42 396.98 2012 293.10 284.01 271.04 257.34 253.73 284.98 349.64 415.82 2013 294.19 284.78 278.02 254.24 258.87 272.96 356.67 416.55 2014 295.29 288.37 274.20 257.39 256.29 282.31 354.64 421.87 2015 297.54 291.29 276.98 255.38 252.34 285.48 359.87 438.18 2016 290.68 280.37 276.20 251.20 251.46 273.08 355.46 403.15 2017 294.25 280.39 279.30 257.05 257.99 278.93 351.88 412.27 2018 297.24 280.28 280.28 258.44 249.10 285.26 365.58 420.72 2019 294.24 284.30 275.97 253.35 257.90 272.04 358.57 425.35 2020 289.66 281.59 277.80 254.57 253.13 283.82 353.42 349.36 2021 293.46 281.58 273.30 258.55 258.68 281.45 354.75 396.29 2022 292.09 280.83 273.37 255.62 248.72 281.17 353.00 414.97 2023 294.05 272.79 278.00 259.14 261.06 280.60 349.01 410.32