| Jan | Feb | March | April | May | June | July | Aug | Sept | Oct | Nov | Dec | GEM Annual | Benchmark | |
| 1950 | 1.97% | 1.99% | 0.70% | 4.86% | 5.09% | -5.48% | 1.19% | 4.43% | 5.92% | 0.93% | 1.69% | 5.13% | 31.74% | 17.45% |
| 1951 | 6.37% | 1.57% | -1.56% | 5.09% | -2.99% | 1.85% | 7.11% | 4.78% | 0.13% | -1.03% | 0.96% | 4.24% | 29.26% | 16.12% |
| 1952 | 1.81% | -2.82% | 5.03% | -4.02% | 3.43% | 4.90% | 1.96% | -0.71% | -1.76% | 0.20% | 5.71% | 3.82% | 18.35% | 12.77% |
| 1953 | -0.49% | 2.71% | 0.36% | -2.98% | -0.05% | 2.30% | 5.16% | 1.96% | 1.94% | 0.38% | 2.26% | 1.82% | 16.24% | 7.17% |
| 1954 | 0.65% | 4.02% | 0.99% | 4.77% | 3.18% | -0.32% | 3.00% | 7.81% | 4.05% | -1.67% | 2.58% | 3.55% | 37.49% | 36.69% |
| 1955 | 1.97% | -0.22% | -0.30% | 6.14% | -1.66% | 0.55% | 6.22% | -0.25% | 1.30% | -2.84% | 8.27% | 0.15% | 20.39% | 16.64% |
| 1956 | -3.47% | 4.13% | 7.10% | -0.04% | -5.93% | 4.09% | 5.30% | -3.28% | -4.40% | 0.66% | -0.50% | 3.70% | 6.56% | 4.10% |
| 1957 | -4.01% | 2.39% | 0.18% | -1.01% | -0.17% | 4.25% | 3.38% | 1.09% | 0.02% | 0.43% | 3.96% | 2.16% | 13.09% | 0.30% |
| 1958 | 0.34% | 1.39% | 0.53% | 0.52% | 0.60% | -0.68% | -0.91% | 1.76% | 5.01% | 2.70% | 2.84% | 5.35% | 21.02% | 21.98% |
| 1959 | 0.53% | 0.49% | 0.20% | 4.02% | 2.40% | 3.45% | 4.33% | 4.95% | 0.29% | 6.75% | 4.08% | 3.60% | 40.99% | 19.99% |
| 1960 | -1.03% | -0.33% | -0.02% | -0.64% | 0.31% | 2.17% | 2.67% | -0.05% | 0.29% | 0.16% | -0.94% | 2.10% | 4.70% | 6.49% |
| 1961 | -0.59% | 2.73% | 4.22% | 3.29% | 1.16% | -2.75% | 3.42% | 2.43% | -1.84% | 2.98% | 4.47% | 0.46% | 21.55% | 14.65% |
| 1962 | -3.66% | 2.09% | -0.46% | -6.07% | -8.11% | -0.28% | -0.12% | 1.25% | 0.21% | 0.51% | 0.60% | 0.56% | -13.17% | -2.36% |
| 1963 | -0.29% | 0.17% | 0.27% | 0.30% | 1.93% | -1.88% | -0.22% | 5.35% | -0.97% | 3.39% | -0.46% | 2.62% | 10.45% | 10.64% |
| 1964 | 2.83% | 1.47% | 1.65% | 0.75% | 1.62% | 1.78% | 1.95% | -1.18% | 3.01% | 0.96% | 0.05% | 0.56% | 16.51% | 7.31% |
| 1965 | 3.45% | 0.31% | -1.33% | 3.56% | -0.30% | -4.73% | 1.47% | 2.72% | 3.34% | 2.89% | -0.31% | 1.06% | 12.45% | 6.69% |
| 1966 | 0.62% | -1.31% | -2.05% | 2.20% | -4.92% | -0.24% | -0.25% | -1.25% | 2.16% | 0.75% | 0.28% | 2.23% | -2.00% | -6.38% |
| 1967 | 1.18% | -0.13% | 1.83% | -0.89% | -4.77% | 1.90% | 4.68% | -0.70% | 3.42% | -2.76% | -3.45% | 2.78% | 2.66% | 14.75% |
| 1968 | -4.25% | 1.85% | 3.29% | -0.16% | 1.86% | -1.31% | 0.02% | 2.28% | 2.82% | -1.14% | 0.17% | -4.02% | 1.07% | 12.69% |
| 1969 | 4.43% | 0.34% | 2.87% | -1.45% | 0.60% | -1.77% | 0.82% | -0.18% | -3.00% | 3.33% | -0.47% | -1.93% | 3.36% | -1.14% |
| 1970 | 0.30% | 4.39% | 0.87% | -2.07% | 1.10% | 0.61% | 1.52% | 1.16% | 1.96% | 0.95% | 4.51% | 0.54% | 16.85% | 2.37% |
| 1971 | 1.68% | 1.17% | 3.94% | 3.89% | -3.91% | 0.33% | -3.87% | 3.88% | -0.44% | -3.91% | 0.02% | 15.33% | 18.01% | 18.11% |
| 1972 | 7.38% | 6.17% | 1.09% | 3.91% | 6.88% | -3.34% | 6.31% | 1.28% | -4.76% | -0.10% | 8.33% | 2.23% | 40.36% | 20.81% |
| 1973 | 4.60% | 10.30% | 2.27% | -6.79% | 0.57% | -0.06% | -2.76% | 2.54% | 2.50% | 0.50% | 0.64% | 0.40% | 14.73% | -8.10% |
| 1974 | 0.09% | 0.35% | -2.12% | -1.52% | 1.30% | -0.87% | 0.07% | -0.12% | 3.19% | 1.09% | 2.36% | 1.85% | 5.68% | -15.85% |
| 1975 | 0.53% | 1.48% | -0.59% | -1.86% | 2.60% | 4.77% | -6.44% | -1.76% | -3.12% | 6.53% | 2.54% | -0.81% | 3.22% | 27.96% |
| 1976 | 12.17% | -0.84% | 3.37% | -0.78% | -1.11% | 4.43% | -0.48% | -0.18% | 2.58% | -1.86% | -0.41% | 5.61% | 23.92% | 15.96% |
| 1977 | -4.73% | -1.82% | 0.75% | 0.91% | 0.69% | 1.42% | -0.06% | 0.96% | 0.00% | -0.53% | 0.89% | -0.44% | -2.10% | 2.15% |
| 1978 | -0.24% | 0.39% | 0.32% | 0.14% | -0.45% | 4.10% | 1.14% | 2.09% | 3.00% | 4.92% | 0.98% | -0.96% | 16.35% | 12.54% |
| 1979 | 1.87% | -0.12% | 2.86% | -0.09% | -1.33% | 2.18% | 0.61% | -0.26% | 4.88% | -8.22% | 4.75% | 2.14% | 8.95% | 11.91% |
| 1980 | 6.22% | -0.01% | -9.72% | 11.34% | 4.72% | 3.16% | 0.06% | 1.01% | 3.70% | 2.02% | -1.42% | -3.02% | 17.90% | 22.59% |
| 1981 | -4.18% | 1.74% | 4.00% | -1.93% | 0.26% | -0.63% | 0.21% | -2.11% | -0.07% | 5.85% | 8.52% | -3.74% | 7.37% | -1.02% |
| 1982 | 0.63% | 1.95% | 1.27% | 2.80% | 1.62% | -1.57% | 4.30% | 5.46% | 4.05% | 5.30% | 4.04% | 1.93% | 36.53% | 18.28% |
| 1983 | 3.72% | 2.29% | 3.69% | 7.88% | -0.87% | 3.89% | -2.95% | 1.50% | 1.38% | -1.16% | 3.30% | 3.74% | 29.28% | 19.28% |
| 1984 | 3.33% | 1.39% | 7.94% | -0.20% | -3.12% | 1.28% | 4.50% | 1.68% | 2.38% | 4.24% | 1.79% | 1.46% | 29.69% | 8.15% |
| 1985 | 2.28% | 1.22% | 0.07% | -0.09% | 5.78% | 1.57% | -0.15% | 2.77% | 4.87% | 5.84% | 4.40% | 4.31% | 37.94% | 34.49% |
| 1986 | 2.35% | 10.39% | 13.55% | 6.19% | -4.18% | 6.30% | 5.63% | 9.72% | -0.86% | -6.30% | 5.61% | 5.12% | 65.86% | 30.17% |
| 1987 | 10.82% | 3.14% | 8.46% | 9.97% | -0.06% | -2.86% | 0.42% | 7.13% | -1.49% | -14.50% | 0.78% | 1.36% | 22.50% | 10.99% |
| 1988 | 3.52% | 1.19% | -0.94% | -0.54% | -0.67% | 2.41% | -0.52% | 0.26% | 2.26% | 1.88% | 5.58% | 0.63% | 15.90% | 17.49% |
| 1989 | 1.98% | 0.45% | -1.71% | 5.19% | 4.05% | -0.57% | 9.03% | 1.95% | -0.41% | -2.32% | 2.04% | 2.40% | 23.80% | 21.62% |
| 1990 | -6.71% | 1.29% | 2.65% | -2.49% | 9.75% | -0.67% | -0.32% | -1.34% | 0.83% | 1.27% | 2.15% | 1.56% | 7.42% | -5.33% |
| 1991 | 1.24% | 7.15% | 2.42% | 0.24% | 4.31% | -4.58% | 4.66% | 2.37% | -1.67% | 1.34% | -4.03% | 11.44% | 26.57% | 22.11% |
| 1992 | -1.86% | 1.30% | -1.94% | 2.94% | 0.49% | -1.49% | 4.09% | -2.05% | 1.18% | 0.35% | 3.41% | 1.23% | 7.65% | 2.23% |
| 1993 | 0.84% | 1.36% | 2.11% | -2.42% | 2.23% | -1.20% | 3.32% | 5.37% | -2.06% | 3.62% | -7.62% | 7.80% | 13.18% | 16.75% |
| 1994 | 8.22% | -0.76% | -4.58% | -0.80% | 0.03% | 0.71% | 1.99% | 3.36% | -2.48% | -0.09% | -0.22% | 0.69% | 5.68% | 1.72% |
| 1995 | 1.98% | 2.38% | 2.95% | 2.94% | 4.00% | 2.32% | 3.32% | 0.25% | 4.22% | -0.36% | 4.39% | 1.93% | 34.76% | 24.33% |
| 1996 | 3.40% | 0.93% | 0.96% | 1.47% | 2.58% | 0.38% | -4.42% | 2.11% | 5.63% | 2.76% | 7.56% | -1.98% | 22.96% | 12.98% |
| 1997 | 6.25% | 0.78% | -4.11% | 5.97% | 6.09% | 4.48% | 7.96% | -5.60% | 5.48% | -3.34% | 4.63% | 1.72% | 33.38% | 17.77% |
| 1998 | 1.11% | 7.21% | 5.12% | 1.01% | -1.72% | 4.06% | -1.06% | -14.46% | 6.41% | 8.13% | 6.06% | 5.76% | 28.58% | 19.59% |
| 1999 | 4.18% | -3.11% | 4.00% | 3.87% | -2.36% | 5.55% | -3.12% | -0.49% | -2.74% | 3.72% | 2.03% | 9.54% | 22.14% | 17.52% |
| 2000 | -5.43% | 2.70% | 3.76% | -5.58% | -2.56% | 4.26% | -3.95% | 1.24% | -5.28% | -0.42% | 1.64% | 1.86% | -8.21% | -5.43% |
| 2001 | 1.63% | 0.87% | 0.50% | -0.42% | 0.60% | 0.38% | 2.24% | 1.15% | 1.16% | 2.09% | -1.38% | -0.64% | 8.42% | -8.67% |
| 2002 | 0.81% | 0.97% | -1.66% | 1.94% | 0.85% | 0.87% | 1.21% | 1.69% | 1.62% | -0.46% | -0.03% | 2.07% | 10.27% | -11.68% |
| 2003 | 0.09% | 1.38% | -0.08% | 0.83% | 1.86% | -0.20% | -3.36% | 1.95% | 2.80% | 6.48% | 2.18% | 7.63% | 23.26% | 25.06% |
| 2004 | 1.61% | 2.54% | 0.62% | -3.11% | 0.32% | 2.17% | -2.91% | 0.80% | 3.22% | 3.48% | 6.94% | 4.29% | 21.38% | 11.97% |
| 2005 | -1.72% | 4.93% | -2.71% | -2.47% | 0.63% | 1.88% | 3.69% | 2.56% | 5.16% | -3.64% | 3.36% | 4.81% | 17.11% | 7.65% |
| 2006 | 6.97% | -0.29% | 2.90% | 5.16% | -4.61% | -0.10% | 1.02% | 2.83% | 0.06% | 4.07% | 3.63% | 3.12% | 27.14% | 15.72% |
| 2007 | 0.37% | 0.61% | 2.82% | 4.64% | 2.74% | 0.85% | -0.29% | -1.54% | 6.62% | 5.58% | -4.49% | -1.45% | 17.10% | 9.21% |
| 2008 | -9.68% | 0.14% | 0.34% | -0.21% | -0.73% | -0.08% | -0.08% | 0.95% | -1.34% | -2.36% | 3.25% | 3.73% | -6.51% | -29.76% |
| 2009 | -0.88% | -0.38% | 1.39% | 0.48% | 0.73% | 0.57% | 1.61% | 1.04% | 1.05% | 0.49% | 2.89% | 2.13% | 11.64% | 25.25% |
| 2010 | -4.88% | 0.01% | 6.85% | -0.81% | -10.41% | -5.23% | 7.01% | -4.51% | 8.92% | 3.80% | 0.01% | 6.68% | 5.51% | 12.28% |
| 2011 | 2.37% | 3.43% | 0.04% | 2.96% | -2.77% | -1.42% | -2.03% | -5.43% | -7.03% | 10.93% | -0.22% | 1.02% | 0.68% | -0.66% |
| 2012 | 4.48% | 4.32% | 3.29% | -0.63% | -6.01% | 0.04% | 1.39% | 2.25% | 2.58% | -1.85% | 0.58% | 0.91% | 11.44% | 13.33% |
| 2013 | 4.09% | 1.36% | 3.75% | 1.93% | 2.34% | -1.34% | 5.09% | -2.90% | 3.14% | 4.60% | 3.05% | 2.53% | 31.04% | 17.78% |
| 2014 | -3.46% | 4.57% | 0.84% | 0.74% | 2.35% | 2.07% | -1.38% | 4.00% | -1.40% | 2.44% | 2.69% | -0.25% | 13.69% | 6.68% |
| 2015 | -3.00% | 5.75% | -1.58% | 0.96% | 1.29% | -1.94% | 2.10% | -6.03% | -2.47% | 0.02% | 0.30% | -1.58% | -6.47% | -0.51% |
| 2016 | -4.96% | 0.71% | 0.92% | 0.39% | 1.80% | 0.26% | 3.69% | 0.14% | 0.02% | -1.82% | 3.70% | 1.98% | 6.73% | 7.91% |
| 2017 | 1.90% | 3.97% | 0.12% | 1.03% | 1.41% | 0.35% | 3.71% | 0.55% | 1.89% | 1.89% | 0.83% | 2.27% | 21.75% | 18.25% |
| 2018 | 5.58% | -4.70% | -1.69% | 1.68% | -2.21% | 0.62% | 3.72% | 3.26% | 0.60% | -6.80% | 2.04% | -9.03% | -7.75% | -6.06% |
| 2019 | 1.06% | -0.06% | 1.94% |