下面是对某校学生2021年5月生活开支情况的调查，请阅读表格，得出结论。(至少写两条)        
                                                                                                                                                                                                                                                                                    

生活总开支	买资料	订刊	买零食	娱乐	送礼
30元以下	65%	25%	5%	5%	/
30—60元	50%	15%	20%	10%	5%
61—100元	35%	10%	25%	15%	15%
100元以上	20%	5%	30%	25%	20%