Year	kt
1960	150992.2684212128
1961	194159.2487197977
1962	240754.88611142556
1963	287216.4424831691
1964	345739.03291048645
1965	399693.14047497534
1966	442354.06097147276
1967	484960.415174312
1968	523523.90307428536
1969	567361.7013363753
1970	544009.7274069464
1971	604513.1016089058
1972	634957.9197121793
1973	681572.208798315
1974	730274.0008846917
1975	796722.0476928292
1976	874931.5128301148
1977	940890.1693465366
1978	1022445.7878648852
1979	1078699.2259599802
1980	1138463.8545841526
1981	1201417.5929100418
1982	1270637.127272613
1983	1367996.076853992
1984	1519642.1190143686
1985	1656226.188565306
1986	1629820.2985632229
1987	1861041.0795322282
1988	1990605.0035890872
1989	2077814.339419105
1990	2111197.420975678
1991	2164264.2207685616
1992	1732298.2972064037
1993	1717818.5229500572
1994	1658370.8798123274
1995	1703417.504624363
1996	1757467.7855255492
1997	1746586.972066505
1998	1748276.8885001717
1999	1846252.084158105
2000	1881066.0094137636
2001	1949280.0650208732
2002	1998691.1970441039
2003	2156567.0300582102
2004	2258868.6002357327
2005	2374903.216484705
2006	2466385.0357558033
2007	2576252.6359111816
2008	2665942.157468048
2009	2638580.2698844685
2010	2881421.0773119833
2011	3014743.706994307
2012	3038830.021789458
2013	3110121.011468194
2014	3190333.6922034505
2015	3222257.4387130993
2016	3286543.8879366084