_id	年度	給水区域内人口（人）	給水人口（人）	給水区域内普及率（％）
1	2012	49661	49604	99.89%
2	2013	49914	49854	99.88%
3	2014	49800	49740	99.88%
4	2015	49584	49524	99.88%
5	2016	49530	49470	99.88%
6	2017	49599	49539	99.88%
7	2018	49594	49544	99.90%
8	2019	49553	49503	99.90%
9	2020	49530	49480	99.90%
10	2021	49463	49413	99.90%
11	2022	49292	49242	99.90%
12	2023	49177	49127	99.90%
13	2024	49035	48985	99.90%