Year,Viet Nam,Cabo Verde,Brazil 1961,2.66049299602515,2.38207875396116,3.01712402135294 1962,2.59846800903446,3.1269852986783,2.98413178984127 1963,2.76282545445889,3.30370489967376,2.94697800169989 1964,2.6662269308257,3.27359578455994,2.89384532588109 1965,2.53137087053675,3.25848253765739,2.81797346768923 1966,2.38235217834686,3.26243399208442,2.73236317426946 1967,2.26282392922143,3.27724807240761,2.64271600538347 1968,2.13548066761958,3.29620787167029,2.56183412825181 1969,2.11044129709734,3.30710938739121,2.50796582962001 1970,2.17693974470409,3.04608189542175,2.47317174130758 1971,2.3213475682191,2.11751228480238,2.44801384438618 1972,2.28214318459982,1.12947405863466,2.43336258601704 1973,2.23302502747562,0.835477102543294,2.42103657885576 1974,2.23486930356709,0.892692636307458,2.39665879234277 1975,2.32743351549493,1.07723212511223,2.37884287680594 1976,2.55308684698776,1.17277088432815,2.38155616304412 1977,2.62834581225948,1.08600126624057,2.38655749823333 1978,2.61027373200441,1.05345968766793,2.38605063277526 1979,2.22125406032671,1.04873787561232,2.37626195376506 1980,2.14104273585666,1.18891037797972,2.35969066147983 1981,2.34984106682984,1.39602081046734,2.328674853913 1982,2.3415408609404,1.47693315494342,2.27914448988333 1983,2.38294420928097,1.47083850542897,2.23365283811212 1984,2.3994454491251,1.42645535984854,2.18625478508242 1985,2.32020926228808,1.40898441788629,2.13058251317121 1986,2.15476237596871,1.41410463314484,2.0601457180807 1987,2.030063573031,1.4064215904602,1.98157140954846 1988,2.02305132101298,1.39712763091834,1.91028205578332 1989,2.0539568975987,1.49948298838424,1.84389971585717 1990,2.09368868105156,2.05192397342069,1.78613575086263 1991,2.09563784726273,2.41007225580579,1.71576956519978 1992,2.02528655896492,2.26976033226457,1.66724681782032 1993,1.92400355460531,2.14999857933375,1.61992855794359 1994,1.80580242039077,2.03480825423247,1.56329973533197 1995,1.67325494682511,1.90171027115883,1.53901255207011 1996,1.52407678637018,1.77250887678015,1.51410759163045 1997,1.45262124184775,1.6815812275736,1.48650426533337 1998,1.43491495510774,1.60125908365746,1.48772098102752 1999,1.30328491482511,1.51982553166013,1.45652767159292 2000,1.12950984166849,1.51097073984668,1.37521128317928 2001,1.05123747397877,1.52715832330257,1.30335503159977 2002,1.02445055878013,1.45645106544752,1.24142062598122 2003,0.999847904782733,1.34770321112892,1.18021395482771 2004,0.969589431962946,1.25679558194683,1.12991417032023 2005,0.928402391177897,1.19132344131983,1.09590612526605 2006,1.32258336381927,1.15040265762577,1.05833842529955 2007,1.76779845772365,1.10689150817132,1.01236820635667 2008,1.82745521345807,1.03555151023311,0.957984635895359 2009,1.49648723830416,0.950085360363308,0.895632239477021 2010,1.14440259659988,0.717181999615317,0.84088322514573 2011,1.15183406119192,0.325685661710053,0.81381388423754 2012,1.1709874078049,0.0992767342106355,0.811598483382088 2013,1.1802975549343,0.052725108136232,0.810511647523289 2014,1.21423463554626,0.0197159536864678,0.806314177734439 2015,1.23975403093124,0.0132719182020122,0.791721773592796 2016,1.25988366517733,0.0312210963482392,0.761972670496742 2017,1.24420473643635,0.0661175101881539,0.72824666001736 2018,1.10791395242199,0.101723857752759,0.683439571425594 2019,0.968366698803348,0.134109462358547,0.651994346081362 2020,0.927434295850725,0.11178257414313,0.579350709708032 2021,0.868883560805873,0.38203217521266,0.425360907216456 2022,0.750756665157789,0.596688345869947,0.360180890872169 2023,0.671429250652247,0.497087597239901,0.395928695574996 2024,0.631267006487247,0.486246288487151,0.405467027627251