Hyperref not working

Hyperref not working

I have a problem with using some hyperref on my latex file....For some reason, after compiling my latex file and opening my .pdf. The hyperref doesnt go right to the place where the label is on ! And i don't know why it isn't working .
code:
\documentclass[12pt,a4paper]{article}\usepackage[portuguese]{babel}\usepackage[applemac]{inputenc}\usepackage{hyperref}\begin{document}
\label{I}Eventos\begin{center}
\begin{tabular}{ | l | p{5cm} |}
\hline
Nome & Festa do Antonio
 \\ \hline
Ano & 2003 \\ \hline
\end{tabular}
\end{center}
Familias\begin{center}
\begin{tabular}{ | l | p{5cm} |}
\hline
Data de casamento & 2000 \\ \hline
Mulher &\hyperref[aut4]{aut4}
\\ \hline
\end{tabular}
\end{center}
Pessoas\begin{center}
\begin{tabular}{ | l | p{5cm} |}
\hline
Nome & Manuel da Silva
 \\ \hline
Data de nascimento & 1977 \\ \hline
Data de falecimento & 2011 \\ \hline
Foto & f.jpg \\ \hline
Hist & h1.tex \\ \hline
\end{tabular}
\end{center}
\begin{center}
\begin{tabular}{ | l | p{5cm} |}
\hline
Nome & Ana da Silva
 \\ \hline
Data de nascimento & 2006 \\ \hline
Foto & f1.jpg \\ \hline
Hist & h1.tex \\ \hline
\end{tabular}
\end{center}
\begin{center}
\begin{tabular}{ | l | p{5cm} |}
\hline
Nome & Maria Felisbina
 \\ \hline
Data de nascimento & 1980 \\ \hline
\end{tabular}
\end{center}
\label{aut1}\begin{center}
\begin{tabular}{ | l | p{5cm} |}
\hline
Nome & Maria da Silva
 \\ \hline
Data de falecimento & 2009 \\ \hline
\end{tabular}
\end{center}
\label{aut2}\begin{center}
\begin{tabular}{ | l | p{5cm} |}
\hline
Nome & Joaquim Oliveira da Silva
 \\ \hline
\end{tabular}
\end{center}
\label{aut3}\begin{center}
\begin{tabular}{ | l | p{5cm} |}
\hline
Nome & Joaquina
 \\ \hline
Data de nascimento & 1930 \\ \hline
\end{tabular}
\end{center}
\label{aut4}\begin{center}
\begin{tabular}{ | l | p{5cm} |}
\hline
Nome & Serafim da Silva
 \\ \hline
Data de nascimento & 2004 \\ \hline
\end{tabular}\end{center}
\hyperref[I]{I}
\end{document}
As you can see, my "\hyperref[aut4]{aut4}" doesn't go to my "\label{aut4}".
Is there a problem if i put firstly the hyperref and after the label ? ( i mean the order)