_id	year	county_id	county_name	population	pct_change	change_since_base_yr
1	2000	42017	Bucks	599454	0	0
2	2000	34005	Burlington	424547	0	0
3	2000	34007	Camden	507648	0	0
4	2000	42029	Chester	435829	0	0
5	2000	42045	Delaware	552092	0	0
6	2000	34015	Gloucester	256340	0	0
7	2000	34021	Mercer	351561	0	0
8	2000	42091	Montgomery	750975	0	0
9	2000	42101	Philadelphia	1513800	0	0
10	2001	42017	Bucks	603241	0.006	3787
11	2001	34005	Burlington	429655	0.012	5108
12	2001	34007	Camden	507830	0.000	182
13	2001	42029	Chester	441763	0.014	5934
14	2001	42045	Delaware	552663	0.001	571
15	2001	34015	Gloucester	259050	0.011	2710
16	2001	34021	Mercer	353965	0.007	2404
17	2001	42091	Montgomery	757879	0.009	6904
18	2001	42101	Philadelphia	1512507	-0.001	-1293
19	2002	42017	Bucks	607465	0.007	8011
20	2002	34005	Burlington	436318	0.016	11771
21	2002	34007	Camden	509783	0.004	2135
22	2002	42029	Chester	448746	0.016	12917
23	2002	42045	Delaware	552588	0.000	496
24	2002	34015	Gloucester	263518	0.017	7178
25	2002	34021	Mercer	356098	0.006	4537
26	2002	42091	Montgomery	763218	0.007	12243
27	2002	42101	Philadelphia	1510550	-0.001	-3250
28	2003	42017	Bucks	610131	0.004	10677
29	2003	34005	Burlington	442581	0.014	18034
30	2003	34007	Camden	510584	0.002	2936
31	2003	42029	Chester	455877	0.016	20048
32	2003	42045	Delaware	552355	0.000	263
33	2003	34015	Gloucester	268257	0.018	11917
34	2003	34021	Mercer	358669	0.007	7108
35	2003	42091	Montgomery	768240	0.007	17265
36	2003	42101	Philadelphia	1510068	0.000	-3732
37	2004	42017	Bucks	613691	0.006	14237
38	2004	34005	Burlington	446041	0.008	21494
39	2004	34007	Camden	512710	0.004	5062
40	2004	42029	Chester	463900	0.018	28071
41	2004	42045	Delaware	551681	-0.001	-411
42	2004	34015	Gloucester	273020	0.018	16680
43	2004	34021	Mercer	361225	0.007	9664
44	2004	42091	Montgomery	770700	0.003	19725
45	2004	42101	Philadelphia	1514658	0.003	858
46	2005	42017	Bucks	616047	0.004	16593
47	2005	34005	Burlington	446462	0.001	21915
48	2005	34007	Camden	514960	0.004	7312
49	2005	42029	Chester	471562	0.017	35733
50	2005	42045	Delaware	552126	0.001	34
51	2005	34015	Gloucester	276680	0.013	20340
52	2005	34021	Mercer	361882	0.002	10321
53	2005	42091	Montgomery	772142	0.002	21167
54	2005	42101	Philadelphia	1517628	0.002	3828
55	2006	42017	Bucks	619245	0.005	19791
56	2006	34005	Burlington	447131	0.001	22584
57	2006	34007	Camden	516547	0.003	8899
58	2006	42029	Chester	480200	0.018	44371
59	2006	42045	Delaware	553664	0.003	1572
60	2006	34015	Gloucester	281936	0.019	25596
61	2006	34021	Mercer	362813	0.003	11252
62	2006	42091	Montgomery	772968	0.001	21993
63	2006	42101	Philadelphia	1520251	0.002	6451
64	2007	42017	Bucks	621334	0.003	21880
65	2007	34005	Burlington	446314	-0.002	21767
66	2007	34007	Camden	517559	0.002	9911
67	2007	42029	Chester	487567	0.015	51738
68	2007	42045	Delaware	555019	0.002	2927
69	2007	34015	Gloucester	286056	0.015	29716
70	2007	34021	Mercer	363402	0.002	11841
71	2007	42091	Montgomery	775631	0.003	24656
72	2007	42101	Philadelphia	1530031	0.006	16231
73	2008	42017	Bucks	623562	0.004	24108
74	2008	34005	Burlington	445492	-0.002	20945
75	2008	34007	Camden	517739	0.000	10091
76	2008	42029	Chester	493281	0.012	57452
77	2008	42045	Delaware	556251	0.002	4159
78	2008	34015	Gloucester	288168	0.007	31828
79	2008	34021	Mercer	364571	0.003	13010
80	2008	42091	Montgomery	778452	0.004	27477
81	2008	42101	Philadelphia	1540351	0.007	26551
82	2009	42017	Bucks	626015	0.004	26561
83	2009	34005	Burlington	446108	0.001	21561
84	2009	34007	Camden	517879	0.000	10231
85	2009	42029	Chester	498894	0.011	63065
86	2009	42045	Delaware	558028	0.003	5936
87	2009	34015	Gloucester	289920	0.006	33580
88	2009	34021	Mercer	366222	0.005	14661
89	2009	42091	Montgomery	782339	0.005	31364
90	2009	42101	Philadelphia	1547297	0.005	33497
91	2010	42017	Bucks	625385	-0.001	25931
92	2010	34005	Burlington	449129	0.007	24582
93	2010	34007	Camden	513275	-0.009	5627
94	2010	42029	Chester	499925	0.002	64096
95	2010	42045	Delaware	558981	0.002	6889
96	2010	34015	Gloucester	289150	-0.003	32810
97	2010	34021	Mercer	367713	0.004	16152
98	2010	42091	Montgomery	800874	0.024	49899
99	2010	42101	Philadelphia	1528283	-0.012	14483
100	2011	42017	Bucks	625938	0.001	26484
101	2011	34005	Burlington	450187	0.002	25640
102	2011	34007	Camden	512585	-0.001	4937
103	2011	42029	Chester	503462	0.007	67633
104	2011	42045	Delaware	559275	0.001	7183
105	2011	34015	Gloucester	289687	0.002	33347
106	2011	34021	Mercer	367378	-0.001	15817
107	2011	42091	Montgomery	805281	0.006	54306
108	2011	42101	Philadelphia	1540466	0.008	26666
109	2012	42017	Bucks	625346	-0.001	25892
110	2012	34005	Burlington	450522	0.001	25975
111	2012	34007	Camden	511584	-0.002	3936
112	2012	42029	Chester	506089	0.005	70260
113	2012	42045	Delaware	560761	0.003	8669
114	2012	34015	Gloucester	289804	0.000	33464
115	2012	34021	Mercer	368554	0.003	16993
116	2012	42091	Montgomery	808672	0.004	57697
117	2012	42101	Philadelphia	1551824	0.007	38024
118	2013	42017	Bucks	625012	-0.001	25558
119	2013	34005	Burlington	448824	-0.004	24277
120	2013	34007	Camden	509908	-0.003	2260
121	2013	42029	Chester	509105	0.006	73276
122	2013	42045	Delaware	561499	0.001	9407
123	2013	34015	Gloucester	289883	0.000	33543
124	2013	34021	Mercer	369429	0.002	17868
125	2013	42091	Montgomery	812586	0.005	61611
126	2013	42101	Philadelphia	1558313	0.004	44513
127	2014	42017	Bucks	625253	0.000	25799
128	2014	34005	Burlington	448168	-0.001	23621
129	2014	34007	Camden	508316	-0.003	668
130	2014	42029	Chester	512770	0.007	76941
131	2014	42045	Delaware	562696	0.002	10604
132	2014	34015	Gloucester	290680	0.003	34340
133	2014	34021	Mercer	368909	-0.001	17348
134	2014	42091	Montgomery	815753	0.004	64778
135	2014	42101	Philadelphia	1565460	0.005	51660
136	2015	42017	Bucks	625276	0.000	25822
137	2015	34005	Burlington	446832	-0.003	22285
138	2015	34007	Camden	507638	-0.001	-10
139	2015	42029	Chester	515055	0.004	79226
140	2015	42045	Delaware	563225	0.001	11133
141	2015	34015	Gloucester	290943	0.001	34603
142	2015	34021	Mercer	368124	-0.002	16563
143	2015	42091	Montgomery	817180	0.002	66205
144	2015	42101	Philadelphia	1571065	0.004	57265
145	2016	42017	Bucks	625861	0.001	26407
146	2016	34005	Burlington	445972	-0.002	21425
147	2016	34007	Camden	507002	-0.001	-646
148	2016	42029	Chester	516767	0.003	80938
149	2016	42045	Delaware	563708	0.001	11616
150	2016	34015	Gloucester	290761	-0.001	34421
151	2016	34021	Mercer	367699	-0.001	16138
152	2016	42091	Montgomery	819791	0.003	68816
153	2016	42101	Philadelphia	1576051	0.003	62251
154	2017	42017	Bucks	626811	0.002	27357
155	2017	34005	Burlington	445610	-0.001	21063
156	2017	34007	Camden	506224	-0.002	-1424
157	2017	42029	Chester	518901	0.004	83072
158	2017	42045	Delaware	563858	0.000	11766
159	2017	34015	Gloucester	290961	0.001	34621
160	2017	34021	Mercer	368168	0.001	16607
161	2017	42091	Montgomery	824303	0.006	73328
162	2017	42101	Philadelphia	1580601	0.003	66801
163	2018	42017	Bucks	627812	0.002	28358
164	2018	34005	Burlington	444745	-0.002	20198
165	2018	34007	Camden	506353	0.000	-1295
166	2018	42029	Chester	522086	0.006	86257
167	2018	42045	Delaware	565231	0.002	13139
168	2018	34015	Gloucester	291525	0.002	35185
169	2018	34021	Mercer	368188	0.000	16627
170	2018	42091	Montgomery	826924	0.003	75949
171	2018	42101	Philadelphia	1583592	0.002	69792
172	2019	42017	Bucks	628270	0.001	28816
173	2019	34005	Burlington	445349	0.001	20802
174	2019	34007	Camden	506471	0.000	-1177
175	2019	42029	Chester	524989	0.006	89160
176	2019	42045	Delaware	566747	0.003	14655
177	2019	34015	Gloucester	291636	0.000	35296
178	2019	34021	Mercer	367430	-0.002	15869
179	2019	42091	Montgomery	830915	0.005	79940
180	2019	42101	Philadelphia	1584064	0.000	70264
181	2020	42017	Bucks	646190	0.029	46736
182	2020	34005	Burlington	461694	0.037	37147
183	2020	34007	Camden	523151	0.033	15503
184	2020	42029	Chester	534860	0.019	99031
185	2020	42045	Delaware	576523	0.017	24431
186	2020	34015	Gloucester	302575	0.038	46235
187	2020	34021	Mercer	386492	0.052	34931
188	2020	42091	Montgomery	856900	0.031	105925
189	2020	42101	Philadelphia	1600788	0.011	86988
190	2021	42017	Bucks	647489	0.002	48035
191	2021	34005	Burlington	464547	0.006	40000
192	2021	34007	Camden	524176	0.002	16528
193	2021	42029	Chester	541036	0.012	105207
194	2021	42045	Delaware	577126	0.001	25034
195	2021	34015	Gloucester	304636	0.007	48296
196	2021	34021	Mercer	382231	-0.011	30670
197	2021	42091	Montgomery	864252	0.009	113277
198	2021	42101	Philadelphia	1589918	-0.007	76118
199	2022	42017	Bucks	645871	-0.002	46417
200	2022	34005	Burlington	466710	0.005	42163
201	2022	34007	Camden	525395	0.002	17747
202	2022	42029	Chester	547248	0.011	111419
203	2022	42045	Delaware	577040	0.000	24948
204	2022	34015	Gloucester	306936	0.008	50596
205	2022	34021	Mercer	382165	0.000	30604
206	2022	42091	Montgomery	865848	0.002	114873
207	2022	42101	Philadelphia	1570554	-0.012	56754
208	2023	42017	Bucks	647625	0.003	48171
209	2023	34005	Burlington	470561	0.008	46014
210	2023	34007	Camden	529576	0.008	21928
211	2023	42029	Chester	555310	0.015	119481
212	2023	42045	Delaware	580538	0.006	28446
213	2023	34015	Gloucester	308840	0.006	52500
214	2023	34021	Mercer	386296	0.011	34735
215	2023	42091	Montgomery	871673	0.007	120698
216	2023	42101	Philadelphia	1563349	-0.005	49549
217	2024	42017	Bucks	650131	0.004	50677
218	2024	34005	Burlington	475515	0.011	50968
219	2024	34007	Camden	533988	0.008	26340
220	2024	42029	Chester	560745	0.010	124916
221	2024	42045	Delaware	584882	0.007	32790
222	2024	34015	Gloucester	311783	0.010	55443
223	2024	34021	Mercer	392138	0.015	40577
224	2024	42091	Montgomery	879190	0.009	128215
225	2024	42101	Philadelphia	1573916	0.007	60116