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Unit ( Billions of US dollars )
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According to the latest statistical data released by Zhengzhou and Ningbo Statistical Bureau in 2025, from 1990 to 2021, Zhengzhou's annual average GDP was $51.55 billion, with an average annual growth rate of 6.72%; Ningbo's annual average GDP was $59.78 billion, with an average annual growth rate of 6.67%. In 2020, the GDP difference between Zhengzhou and Ningbo was $5.9 billion, in 2019, the GDP difference between Zhengzhou and Ningbo was $5.7 billion, and in 2018, the GDP difference between Zhengzhou and Ningbo was $9.3 billion.
| Year | Zhengzhou GDP | Ningbo GDP | Difference |
|---|---|---|---|
| 2020 | $174 billion | $179.9 billion | $5.9 billion |
| 2019 | $167 billion | $172.7 billion | $5.7 billion |
| 2018 | $156.6 billion | $165.9 billion | $9.3 billion |
| 2017 | $135.9 billion | $146.5 billion | $10.6 billion |
| 2016 | $120.6 billion | $128.9 billion | $8.3 billion |
| 2015 | $119.6 billion | $131 billion | $11.4 billion |
| 2014 | $111.7 billion | $125.4 billion | $13.7 billion |
| 2013 | $101.1 billion | $116.2 billion | $15.1 billion |
| 2012 | $91.1 billion | $107.2 billion | $16.1 billion |
| 2011 | $78.7 billion | $96.2 billion | $17.5 billion |
| 2010 | $61.4 billion | $78.4 billion | $17 billion |
| 2009 | $49.6 billion | $64.9 billion | $15.3 billion |
| 2008 | $44 billion | $58 billion | $14 billion |
| 2007 | $33.3 billion | $45.9 billion | $12.6 billion |
| 2006 | $25.6 billion | $36.6 billion | $11 billion |
| 2005 | $20.6 billion | $30.4 billion | $9.8 billion |
| 2004 | $16.9 billion | $26.5 billion | $9.6 billion |
| 2003 | $13.5 billion | $21.9 billion | $8.4 billion |
| 2002 | $11.4 billion | $18.4 billion | $7 billion |
| 2001 | $10.2 billion | $16.1 billion | $5.9 billion |
| 2000 | $9.1 billion | $14.4 billion | $5.3 billion |
| 1999 | $7.8 billion | $12.7 billion | $4.9 billion |
| 1998 | $7.6 billion | $11.9 billion | $4.3 billion |
| 1997 | $7 billion | $11 billion | $4 billion |
| 1996 | $6.2 billion | $9.7 billion | $3.5 billion |
| 1995 | $4.8 billion | $7.8 billion | $3 billion |
| 1994 | $3.5 billion | $5.5 billion | $2 billion |
| 1993 | $2.6 billion | $4 billion | $1.4 billion |
| 1992 | $2.4 billion | $3.4 billion | $1 billion |
| 1991 | $2.2 billion | $3 billion | $0.8 billion |
| 1990 | $2.1 billion | $2.8 billion | $0.7 billion |