| 时期 |
兰州 （万人） |
天水 （万人） |
差值 |
|---|---|---|---|
| 2024 | -- | ||
| 2023 | -- | ||
| 2022 | -- | ||
| 2021 | -- | ||
| 2020 | -- | ||
| 2019 | 428.67 | -- | |
| 2018 | 421.53 | 304.25 | -117.28 |
| 2017 | 414.31 | 307.21 | -107.10 |
| 2016 | 405.66 | 309.08 | -96.58 |
| 2015 | 397.89 | 311.55 | -86.34 |
| 2014 | 390.56 | 314.66 | -75.90 |
| 2013 | 383.41 | 317.48 | -65.93 |
| 2012 | 377.11 | 321.20 | -55.91 |
| 2011 | 368.73 | 323.54 | -45.19 |
| 2010 | 361.91 | 326.63 | -35.28 |
| 2009 | 332.18 | 343.07 | 10.89 |
| 2008 | 331.01 | 342.59 | 11.58 |
| 2007 | 329.43 | 341.32 | 11.89 |
| 2006 | 327.01 | 340.79 | 13.78 |
| 2005 | 314.96 | 340.46 | 25.50 |
| 2004 | 305.07 | 347.78 | 42.71 |
| 2003 | 299.81 | 345.64 | 45.83 |
| 2002 | 296.39 | 343.20 | 46.81 |
| 2001 | 294.86 | 340.77 | 45.91 |
| 2000 | 293.44 | 338.49 | 45.05 |
| 1999 | 290.90 | 332.75 | 41.85 |