单位：dB
时间范围：2003 - 2020
数据来源：国家统计局
昆明噪声监测:道路交通等效声级 数据如下：
| 序号 | 时间(年) | 数据(dB) |
|---|---|---|
| 1 | 2020 | |
| 2 | 2019 | |
| 3 | 2018 | |
| 4 | 2017 | |
| 5 | 2016 | |
| 6 | 2015 | 68.80 |
| 7 | 2014 | 53.80 |
| 8 | 2013 | 67.90 |
| 9 | 2012 | 68.39 |
| 10 | 2011 | 68.40 |
| 11 | 2010 | 69.20 |
| 12 | 2009 | 69.30 |
| 13 | 2008 | 69.60 |
| 14 | 2007 | 69.40 |
| 15 | 2006 | 69.70 |
| 16 | 2005 | 69.70 |
| 17 | 2004 | 68.00 |
| 18 | 2003 | 70.50 |
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