Period | SPI | ||||
---|---|---|---|---|---|
Max | Min | Mean | St. dev | Classes | |
1980–84 | 1.01 | − 1.45 | − 0.17 | 0.94 | MD |
1985–89 | 1.28 | 1.86 | 0.01 | 1.17 | MW |
1990–94 | 1.14 | − 0.89 | − 0.29 | 0.62 | MD |
1995–99 | 1.14 | − 0.82 | 0.04 | 0.79 | MW |
2000–04 | 1.9 | − 1.54 | − 0.48 | 0,93 | MD |
2005–09 | 1.9 | − 1.19 | 0.73 | 1.19 | MW |
2010–14 | 0.33 | − 0.6 | − 0.24 | 0.37 | MD |
2015–19 | 1.94 | − 1.44 | 0.4 | 1.1 | MW |
1980–2019 | 1.94 | − 1.86 | 0.01 | 1 | MD |