Name: Total column ozone Units: DU toms+omi+omps Missing: -9999.0 Month: December Year Global 90S--60S 60S--30S 30S--10S 10S--10N 10N--30N 30N--60N 60N--90N 1979 294.08 348.23 328.81 279.51 255.41 254.05 320.39 360.25 1980 292.12 346.69 314.14 271.58 259.53 261.38 323.60 338.87 1981 292.45 342.93 316.96 277.46 251.46 260.19 326.67 348.17 1982 287.46 331.22 313.56 275.32 258.70 250.56 313.71 326.11 1983 287.75 327.34 309.81 272.75 248.73 257.32 325.14 340.31 1984 285.79 319.12 311.45 271.17 258.13 245.82 318.24 353.44 1985 282.50 309.19 292.59 264.63 252.11 255.96 326.54 348.88 1986 284.89 324.04 306.29 270.13 248.40 256.69 318.18 341.99 1987 280.98 315.23 299.46 268.19 258.23 243.84 311.00 355.41 1988 288.75 334.38 311.27 274.50 253.96 259.72 318.27 330.47 1989 287.32 314.13 308.96 277.45 257.17 253.83 319.57 339.62 1990 281.31 292.01 297.22 268.52 255.79 257.14 313.31 359.25 1991 286.48 324.47 316.32 278.35 249.61 253.75 310.77 336.01 1992 276.74 299.02 298.35 269.08 263.44 241.69 295.20 330.02 1993 274.19 294.04 289.30 260.27 240.29 247.21 315.74 343.24 1994 -9999.00 -9999.00 -9999.00 -9999.00 -9999.00 -9999.00 -9999.00 -9999.00 1995 -9999.00 -9999.00 -9999.00 -9999.00 -9999.00 -9999.00 -9999.00 -9999.00 1996 276.06 299.32 296.13 266.44 252.03 242.76 306.21 326.93 1997 276.63 291.25 293.97 260.30 243.14 251.05 320.16 339.51 1998 280.04 272.45 302.33 274.64 262.97 247.58 306.15 343.70 1999 279.62 283.54 293.87 268.06 254.40 257.28 314.37 333.97 2000 281.67 310.73 299.65 267.40 245.40 251.33 322.59 349.94 2001 282.02 281.85 300.92 279.02 264.28 244.98 312.54 350.03 2002 284.50 314.12 307.26 269.90 249.47 249.51 326.26 329.50 2003 279.32 303.12 303.44 270.97 252.97 245.16 306.76 336.66 2004 277.42 299.80 290.15 263.37 247.75 255.51 311.84 348.64 2005 276.61 292.59 298.78 264.63 245.81 243.37 313.54 343.91 2006 273.73 285.34 284.66 257.80 242.85 250.61 317.70 346.88 2007 277.73 289.64 296.85 267.79 250.05 245.35 313.40 348.98 2008 275.30 276.63 288.62 262.24 249.96 253.02 311.51 356.77 2009 281.06 309.93 299.22 263.18 239.27 248.53 331.27 364.03 2010 281.64 278.89 295.23 273.78 263.97 251.93 314.49 352.62 2011 277.31 291.02 294.94 270.10 247.94 255.26 304.27 340.90 2012 278.70 313.21 302.59 266.89 247.02 243.03 310.49 338.73 2013 279.44 304.25 293.68 262.54 253.50 254.15 315.13 326.75 2014 282.03 303.30 299.50 270.76 246.57 255.76 318.67 358.33 2015 277.24 275.02 291.50 267.26 251.83 254.01 313.02 343.32 2016 278.12 312.58 296.50 258.67 252.25 245.07 312.86 360.24 2017 281.61 314.86 301.71 266.43 243.36 255.67 318.51 336.91 2018 277.65 305.07 297.28 263.48 251.22 237.70 316.30 350.93 2019 283.27 315.56 306.46 263.75 243.07 253.66 325.90 346.61 2020 275.62 269.96 288.82 262.84 249.82 253.96 315.87 331.71 2021 279.21 274.65 291.78 270.59 245.25 260.50 319.92 352.48 2022 278.19 284.40 285.16 266.88 260.36 251.51 315.72 337.57 2023 281.32 282.29 300.71 271.36 241.30 256.10 326.18 350.51