div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=documentb-wtoit-1993-10-abo-a-bo-b-el-2010-5-7-wtoit-1993-10-abo-a-bo-bhtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: B WTOIt 1993 10 a+b=O a-bO B El 2010 5 7 … WTOIt 1993 10 a+b=O a-bO B El 2010 5 7 9 CICIt 1970 17 GDP 30 500 togc too 300 2007 30 20 10 10 -20 1880 135 2007 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader030fdocumentsnetreader030viewer20220217145bfbfc6409d3f225088bb8e6html5thumbnails1jpg width=140 height=200 divdiv