_id	year	county_id	county_name	tttr
1	2017	42017	Bucks	1.43
2	2017	34005	Burlington	1.38
3	2017	34007	Camden	2.32
4	2017	42029	Chester	1.14
5	2017	42045	Delaware	2.38
6	2017	34015	Gloucester	1.29
7	2017	34021	Mercer	1.57
8	2017	42091	Montgomery	2.18
9	2017	42101	Philadelphia	2.88
10	2018	42017	Bucks	1.62
11	2018	34005	Burlington	1.46
12	2018	34007	Camden	2.43
13	2018	42029	Chester	1.13
14	2018	42045	Delaware	2.40
15	2018	34015	Gloucester	1.32
16	2018	34021	Mercer	1.71
17	2018	42091	Montgomery	2.03
18	2018	42101	Philadelphia	2.90
19	2019	42017	Bucks	1.50
20	2019	34005	Burlington	1.40
21	2019	34007	Camden	2.34
22	2019	42029	Chester	1.17
23	2019	42045	Delaware	2.36
24	2019	34015	Gloucester	1.36
25	2019	34021	Mercer	1.57
26	2019	42091	Montgomery	2.04
27	2019	42101	Philadelphia	2.86
28	2020	42017	Bucks	1.22
29	2020	34005	Burlington	1.23
30	2020	34007	Camden	1.97
31	2020	42029	Chester	1.15
32	2020	42045	Delaware	2.13
33	2020	34015	Gloucester	1.29
34	2020	34021	Mercer	1.22
35	2020	42091	Montgomery	1.54
36	2020	42101	Philadelphia	2.58
37	2021	42017	Bucks	1.23
38	2021	34005	Burlington	1.22
39	2021	34007	Camden	2.17
40	2021	42029	Chester	1.22
41	2021	42045	Delaware	2.47
42	2021	34015	Gloucester	1.28
43	2021	34021	Mercer	1.21
44	2021	42091	Montgomery	1.63
45	2021	42101	Philadelphia	2.67
46	2022	42017	Bucks	1.29
47	2022	34005	Burlington	1.26
48	2022	34007	Camden	2.29
49	2022	42029	Chester	1.19
50	2022	42045	Delaware	2.59
51	2022	34015	Gloucester	1.24
52	2022	34021	Mercer	1.23
53	2022	42091	Montgomery	1.69
54	2022	42101	Philadelphia	2.59
55	2023	42017	Bucks	1.30
56	2023	34005	Burlington	1.30
57	2023	34007	Camden	2.44
58	2023	42029	Chester	1.19
59	2023	42045	Delaware	2.34
60	2023	34015	Gloucester	1.30
61	2023	34021	Mercer	1.23
62	2023	42091	Montgomery	1.75
63	2023	42101	Philadelphia	2.65
64	2024	42017	Bucks	1.31
65	2024	34005	Burlington	1.35
66	2024	34007	Camden	2.39
67	2024	42029	Chester	1.21
68	2024	42045	Delaware	2.36
69	2024	34015	Gloucester	1.30
70	2024	34021	Mercer	1.29
71	2024	42091	Montgomery	1.87
72	2024	42101	Philadelphia	2.72