filtro comparativo

<!DOCTYPE html>
<html lang="pt-br">
<head>
</head>
<body>
<h1><div align="center">Escolha o filtro para serem exibidos os dados</h1></div>
<h2><center><center>Escolha o ano e compare os índices de criminalidade</center></h2>
<br>
<h1><div align="center">Ano 2017</div></h1>
<div align="center"><form method="post" action="file:///C:/Users/Caroline/Desktop/cursohtml/dados%202017.html"></div>
<div align="center"><input type="submit" value="Filtrar"></div>
</form>
</div>
<br><br>
<h1><div align="center">Ano 2018</div></h1>
<div align="center"><form method="post" action="file:///C:/Users/Caroline/Desktop/cursohtml/dados%202018%20-%20barras.html"></div>
<div align="center"><input type="submit" value="Filtrar"></div>
</form>
</div>
<br><br>
<center><h1>Ano 2019</h1></center>
<div align="center"><form method="post" action="file:///C:/Users/Caroline/Desktop/cursohtml/grafico%20de%20barras.html"></div>
<div align="center"><input type="submit" value="Filtrar"></div>
</form>
</div>
<br><br>
<center><h1>Comparação dos anos</h1></center>
<div align="center"><form method="post" action="file:///C:/Users/Caroline/Desktop/cursohtml/compara%C3%A7%C3%A3o%20anual.html"></div>
<div align="center"><input type="submit" value="Filtrar"></div>
</form>
</div>
</form>
</body>
</html>