Hyperref not working

Question

I have a problem with using \hyperref in my LaTeX file. For some reason, after compiling my LaTeX file and opening my .pdf, the \hyperref doesn't 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 first put the \hyperref and after the \label? (I mean the order)