_id	usia perkawinan pertama	2017	2018	2019	2020	2021
1	<16	8.95	0	6,00	0	0
2	16-24	76.85	0	80.30 	0	0
3	25+	14.20	0	13.70 	0	0
4	Singular mean	20.60	0	20.54 	0	0