Name: SH PSC NAT area
Units: million km2
Level: 460 K
Month: September
Source: GMAO MERRA2
Missing: -9999.0
Mean: 16.42
Year      Data   Minumum   Maximum
1979     13.16      0.00     20.32
1980     14.70      6.20     22.04
1981     10.97      0.78     18.03
1982     12.47      4.99     20.20
1983     13.70      4.77     20.34
1984     13.79      4.34     19.23
1985     14.62      8.30     19.68
1986     11.87      4.24     19.40
1987     18.36     13.39     21.86
1988     10.79      2.00     16.20
1989     17.12      8.65     24.24
1990     14.67      7.91     20.69
1991     14.26      7.29     20.13
1992     12.25      1.49     19.43
1993     15.41      7.45     19.30
1994     15.89     10.74     20.63
1995     15.44     11.76     21.34
1996     16.68     10.40     22.69
1997     15.12     11.82     19.64
1998     21.04     16.21     24.61
1999     19.77     13.72     25.49
2000     21.36     12.85     27.22
2001     19.38     13.82     25.32
2002     10.36      0.00     15.76
2003     21.40     17.91     25.67
2004     15.03      7.01     20.98
2005     19.44     13.80     25.91
2006     21.82     17.11     25.15
2007     19.72     14.24     23.45
2008     20.52     13.64     26.19
2009     19.77     14.30     23.96
2010     15.50     11.54     19.91
2011     21.23     16.07     24.37
2012     14.84      5.54     20.25
2013     17.57     11.65     22.77
2014     17.90     12.06     21.97
2015     19.52     12.14     24.03
2016     16.65     13.06     21.15
2017     11.51      1.82     20.83
2018     19.47     14.54     24.76
2019      6.76      0.00     20.96
2020     18.95     16.01     21.84
2021     19.41     16.01     24.13
2022     18.48     13.54     22.70
2023     20.27     14.27     22.72