_id	jahr	vertragsart	anzahl
1	2009	EFZ	1133
2	2009	EBA	66
3	2010	EFZ	1115
4	2010	EBA	71
5	2011	EFZ	1144
6	2011	EBA	69
7	2012	EFZ	1136
8	2012	EBA	87
9	2013	EFZ	1096
10	2013	EBA	84
11	2014	EFZ	1128
12	2014	EBA	91
13	2015	EFZ	1119
14	2015	EBA	94
15	2016	EFZ	1108
16	2016	EBA	92
17	2017	EFZ	1058
18	2017	EBA	102
19	2018	EFZ	1046
20	2018	EBA	117
21	2019	EFZ	1058
22	2019	EBA	92
23	2020	EFZ	1055
24	2020	EBA	102
25	2021	EFZ	1089
26	2021	EBA	100
27	2022	EFZ	1059
28	2022	EBA	88
29	2023	EFZ	1102
30	2023	EBA	76
31	2024	EFZ	1142
32	2024	EBA	80
33	2025	EFZ	1155
34	2025	EBA	89