_id	year	geography	ownership_type	total	percent
1	2004	DVRPC Region	Privately Protected Open Space	113.4	0.046
2	2004	DVRPC Region	Publicly Protected Open Space	308.5	0.126
3	2004	DVRPC Region	Total Protected Open Space	421.9	0.173
4	2004	NJ Counties Subregion	Privately Protected Open Space	37.2	0.036
5	2004	NJ Counties Subregion	Publicly Protected Open Space	213.5	0.207
6	2004	NJ Counties Subregion	Total Protected Open Space	250.7	0.243
7	2004	PA Suburban Counties Subregion	Privately Protected Open Space	75.7	0.057
8	2004	PA Suburban Counties Subregion	Publicly Protected Open Space	84.7	0.064
9	2004	PA Suburban Counties Subregion	Total Protected Open Space	160.4	0.122
10	2004	Philadelphia County Subregion	Privately Protected Open Space	0.5	0.006
11	2004	Philadelphia County Subregion	Publicly Protected Open Space	10.3	0.113
12	2004	Philadelphia County Subregion	Total Protected Open Space	10.9	0.119
13	2007	DVRPC Region	Privately Protected Open Space	148.6	0.061
14	2007	DVRPC Region	Publicly Protected Open Space	328.2	0.135
15	2007	DVRPC Region	Total Protected Open Space	476.8	0.195
16	2007	NJ Counties Subregion	Privately Protected Open Space	47.0	0.046
17	2007	NJ Counties Subregion	Publicly Protected Open Space	232.6	0.225
18	2007	NJ Counties Subregion	Total Protected Open Space	279.6	0.271
19	2007	PA Suburban Counties Subregion	Privately Protected Open Space	101.0	0.077
20	2007	PA Suburban Counties Subregion	Publicly Protected Open Space	85.2	0.065
21	2007	PA Suburban Counties Subregion	Total Protected Open Space	186.2	0.141
22	2007	Philadelphia County Subregion	Privately Protected Open Space	0.6	0.006
23	2007	Philadelphia County Subregion	Publicly Protected Open Space	10.4	0.115
24	2007	Philadelphia County Subregion	Total Protected Open Space	11.0	0.121
25	2011	DVRPC Region	Privately Protected Open Space	193.9	0.079
26	2011	DVRPC Region	Publicly Protected Open Space	356.7	0.146
27	2011	DVRPC Region	Total Protected Open Space	550.6	0.226
28	2011	NJ Counties Subregion	Privately Protected Open Space	67.7	0.066
29	2011	NJ Counties Subregion	Publicly Protected Open Space	241.2	0.234
30	2011	NJ Counties Subregion	Total Protected Open Space	308.9	0.299
31	2011	PA Suburban Counties Subregion	Privately Protected Open Space	125.6	0.095
32	2011	PA Suburban Counties Subregion	Publicly Protected Open Space	105.0	0.08
33	2011	PA Suburban Counties Subregion	Total Protected Open Space	230.6	0.175
34	2011	Philadelphia County Subregion	Privately Protected Open Space	0.5	0.006
35	2011	Philadelphia County Subregion	Publicly Protected Open Space	10.5	0.115
36	2011	Philadelphia County Subregion	Total Protected Open Space	11.0	0.121
37	2016	DVRPC Region	Privately Protected Open Space	238.5	0.098
38	2016	DVRPC Region	Publicly Protected Open Space	353.5	0.145
39	2016	DVRPC Region	Total Protected Open Space	591.9	0.243
40	2016	NJ Counties Subregion	Privately Protected Open Space	80.3	0.078
41	2016	NJ Counties Subregion	Publicly Protected Open Space	244.3	0.237
42	2016	NJ Counties Subregion	Total Protected Open Space	324.6	0.315
43	2016	PA Suburban Counties Subregion	Privately Protected Open Space	157.6	0.12
44	2016	PA Suburban Counties Subregion	Publicly Protected Open Space	97.3	0.074
45	2016	PA Suburban Counties Subregion	Total Protected Open Space	254.9	0.194
46	2016	Philadelphia County Subregion	Privately Protected Open Space	0.5	0.006
47	2016	Philadelphia County Subregion	Publicly Protected Open Space	11.9	0.131
48	2016	Philadelphia County Subregion	Total Protected Open Space	12.4	0.137