Update benchmark (user guide).

Previous results were from a run performed on Java 10.

Author: Gilles

src/site/apt/userguide/rng.apt

@@ -669,35 +669,35 @@ String word = sampler.sample().get(0);
 *--------------------------*----------------+----------------+----------------+
 || RNG identifier          || <<<BoxMullerNormalizedGaussianSampler>>> || <<<MarsagliaNormalizedGaussianSampler>>> || <<<ZigguratNormalizedGaussianSampler>>> |
 *--------------------------*----------------+----------------+----------------+
-| ISAAC                    |        0.51112 |        0.45365 |        0.33569 |
+| ISAAC                    |        0.98302 |        0.42238 |        0.25057 |
 *--------------------------*----------------+----------------+----------------+
-| JDK                      |        0.65313 |        0.72881 |        0.41540 |
+| JDK                      |        1.06425 |        0.64978 |        0.34814 |
 *--------------------------*----------------+----------------+----------------+
-| KISS                     |        0.46165 |        0.46333 |        0.28334 |
+| KISS                     |        0.95534 |        0.42419 |        0.22697 |
 *--------------------------*----------------+----------------+----------------+
-| MT                       |        0.48088 |        0.48073 |        0.31721 |
+| MT                       |        0.96351 |        0.44536 |        0.25375 |
 *--------------------------*----------------+----------------+----------------+
-| MT_64                    |        0.44583 |        0.40123 |        0.26732 |
+| MT_64                    |        0.88290 |        0.37917 |        0.22083 |
 *--------------------------*----------------+----------------+----------------+
-| MWC_256                  |        0.45035 |        0.37462 |        0.25729 |
+| MWC_256                  |        0.92266 |        0.35825 |        0.19624 |
 *--------------------------*----------------+----------------+----------------+
-| SPLIT_MIX_64             |        0.40131 |        0.30099 |        0.21321 |
+| SPLIT_MIX_64             |        0.83485 |        0.29606 |        0.17689 |
 *--------------------------*----------------+----------------+----------------+
-| TWO_CMRES                |        0.40907 |        0.37078 |        0.23681 |
+| TWO_CMRES                |        0.85873 |        0.35949 |        0.20117 |
 *--------------------------*----------------+----------------+----------------+
-| WELL_1024_A              |        0.57318 |        0.59994 |        0.37321 |
+| WELL_1024_A              |        1.02734 |        0.53311 |        0.27986 |
 *--------------------------*----------------+----------------+----------------+
-| WELL_19937_A             |        0.66410 |        0.68137 |        0.46683 |
+| WELL_19937_A             |        1.08683 |        0.63207 |        0.33016 |
 *--------------------------*----------------+----------------+----------------+
-| WELL_19937_C             |        0.65955 |        0.74347 |        0.46146 |
+| WELL_19937_C             |        1.09748 |        0.61706 |        0.35864 |
 *--------------------------*----------------+----------------+----------------+
-| WELL_44497_A             |        0.68396 |        0.68263 |        0.48795 |
+| WELL_44497_A             |        1.12428 |        0.61903 |        0.35108 |
 *--------------------------*----------------+----------------+----------------+
-| WELL_44497_B             |        0.68948 |        0.73640 |        0.47511 |
+| WELL_44497_B             |        1.12845 |        0.65736 |        0.37151 |
 *--------------------------*----------------+----------------+----------------+
-| WELL_512_A               |        0.54264 |        0.55834 |        0.36659 |
+| WELL_512_A               |        1.01548 |        0.50523 |        0.27629 |
 *--------------------------*----------------+----------------+----------------+
-| XOR_SHIFT_1024_S         |        0.39267 |        0.31503 |        0.23018 |
+| XOR_SHIFT_1024_S         |        0.86013 |        0.30990 |        0.18612 |
 *--------------------------*----------------+----------------+----------------+