Name: SH PSC NAT volume Units: million km3 Month: July Source: GMAO MERRA2 Missing: -9999.0 Mean: 277.93 Year Data Minumum Maximum 1979 262.53 229.92 293.03 1980 273.69 237.67 317.37 1981 248.29 199.06 303.57 1982 291.11 267.67 325.13 1983 266.32 241.57 289.20 1984 265.85 235.48 299.41 1985 256.05 218.53 288.54 1986 250.85 221.44 271.82 1987 286.42 249.92 318.29 1988 271.85 231.78 306.62 1989 270.68 229.75 303.05 1990 279.35 257.46 297.49 1991 284.77 228.73 317.70 1992 293.10 265.48 313.66 1993 301.42 280.89 329.64 1994 280.76 254.19 314.30 1995 338.98 288.81 373.96 1996 296.86 260.43 341.51 1997 322.04 291.70 356.02 1998 309.91 282.61 328.41 1999 284.77 261.21 309.72 2000 305.03 271.33 329.63 2001 275.11 235.45 305.73 2002 243.23 214.35 265.19 2003 283.68 269.04 299.64 2004 250.13 224.71 277.38 2005 266.32 217.29 311.80 2006 289.66 238.06 320.02 2007 254.93 219.33 293.59 2008 300.96 275.26 326.79 2009 285.41 266.92 307.36 2010 215.44 154.69 265.84 2011 266.01 247.25 278.90 2012 231.39 214.50 250.62 2013 280.09 257.88 312.83 2014 276.97 258.44 298.20 2015 252.21 238.51 269.96 2016 278.31 241.67 312.70 2017 274.54 248.16 305.19 2018 278.53 257.71 297.20 2019 275.28 239.83 315.29 2020 293.75 246.85 340.00 2021 306.43 285.50 324.05 2022 281.59 249.35 305.55 2023 306.26 250.23 346.65