United States
The following table shows previous lists and the number of systems installed when the list was published. Country Efficiency in the table is SUM(Rmax)/SUM(Rpeak), expressed as a percentage.
This country maintained presence in the list since the list was started in June 1993.
| List | Systems | Highest Ranking | Sum Rmax (GFlops) |
Sum Rpeak (GFlops) |
Efficiency (%) |
|---|---|---|---|---|---|
| 11/2008 | 290 | 1 | 11181164.50 | 16846822.00 | 66.37 |
| 06/2008 | 257 | 1 | 7018007.96 | 10416255.90 | 67.38 |
| 11/2007 | 284 | 1 | 4178945.70 | 6240241.50 | 66.97 |
| 06/2007 | 280 | 1 | 3075625.70 | 4436682.30 | 69.32 |
| 11/2006 | 309 | 1 | 2271152.47 | 3325500.46 | 68.30 |
| 06/2006 | 299 | 1 | 1779049.62 | 2652415.96 | 67.07 |
| 11/2005 | 305 | 1 | 1570031.79 | 2310400.22 | 67.95 |
| 06/2005 | 277 | 1 | 1045877.68 | 1584367.02 | 66.01 |
| 11/2004 | 267 | 1 | 688149.74 | 1121279.92 | 61.37 |
| 06/2004 | 258 | 2 | 459261.43 | 778467.74 | 59.00 |
| 11/2003 | 247 | 2 | 298787.03 | 532069.78 | 56.16 |
| 06/2003 | 247 | 2 | 201012.32 | 342301.90 | 58.72 |
| 11/2002 | 230 | 2 | 149241.92 | 243439.01 | 61.31 |
| 06/2002 | 226 | 2 | 99263.33 | 163412.93 | 60.74 |
| 11/2001 | 230 | 1 | 77848.11 | 120192.07 | 64.77 |
| 06/2001 | 253 | 1 | 64020.84 | 99956.48 | 64.05 |
| 11/2000 | 234 | 1 | 50567.18 | 81005.84 | 62.42 |
| 06/2000 | 259 | 1 | 36143.45 | 56978.16 | 63.43 |
| 11/1999 | 268 | 1 | 30148.46 | 47508.13 | 63.46 |
| 06/1999 | 293 | 1 | 23775.44 | 36807.21 | 64.59 |
| 11/1998 | 290 | 1 | 17785.59 | 28604.16 | 62.18 |
| 06/1998 | 285 | 1 | 12872.61 | 19202.38 | 67.04 |
| 11/1997 | 265 | 1 | 8782.13 | 13183.22 | 66.62 |
| 06/1997 | 265 | 1 | 6650.40 | 10080.28 | 65.97 |
| 11/1996 | 267 | 4 | 3505.90 | 5281.13 | 66.39 |
| 06/1996 | 257 | 3 | 2791.55 | 4221.25 | 66.13 |
| 11/1995 | 261 | 2 | 2581.51 | 3960.12 | 65.19 |
| 06/1995 | 274 | 2 | 2164.02 | 3425.04 | 63.18 |
| 11/1994 | 242 | 2 | 1341.15 | 2430.56 | 55.18 |
| 06/1994 | 246 | 1 | 1201.31 | 1997.01 | 60.16 |
| 11/1993 | 236 | 2 | 857.56 | 1474.99 | 58.14 |
| 06/1993 | 225 | 1 | 686.21 | 1161.88 | 59.06 |