Jaar	Invoer(eenheden)	Uitvoer(eenheden)	Totaal(eenheden)	Invoer(TEU)	Uitvoer(TEU)	Totaal(TEU)
2009	679.467	731.734	1.411.201	1.129.235	1.198.963	2.328.198
2008	636.202	670.354	1.306.556	1.082.919	1.126.794	2.209.713
2007	573.939	625.291	1.199.230	973.310	1.047.413	2.020.723
2006	462.363	535.271	997.634	773.987	879.506	1.653.493
2005	396.848	454.310	851.158	658.987	748.946	1.407.933
2004	335.420	385.020	720.440	557.943	638.812	1.196.755
2003	285.332	325.507	610.839	473.137	539.537	1.012.674
2002	275.659	308.562	584.221	449.855	509.087	958.942
2001	253.732	285.772	539.504	409.420	466.506	875.926
2000	299.406	326.809	626.215	457.496	507.849	965.345
1999	273.352	295.404	568.756	405.417	444.747	850.164
1998	266.010	264.337	530.347	388.442	387.915	776.357
1997	223.153	229.636	452.789	316.430	331.723	648.153
1996	198.173	200.469	398.642	271.947	281.228	553.175
1995	193.712	197.260	390.972	260.307	268.168	528.475
1994	228.879	227.681	456.560	303.681	305.626	609.307
1993	186.494	186.718	373.212	243.737	246.288	490.025
1992	199.115	194.955	394.070	262.018	263.495	525.513
1991	117.866	115.245	233.111	152.430	151.525	303.955
1990	130.645	121.149	251.794	174.725	159.657	334.382
1989	117.671	116.405	234.076	143.652	144.535	288.187
1988	93.537	98.246	191.783	115.188	124.039	239.227
1987	79.820	82.157	161.977	102.849	106.291	209.140
1986	79.414	78.559	157.973	104.986	106.502	211.488
1985	84.558	82.305	166.863	109.098	109.160	218.258
1984	78.692	78.000	156.692	100.426	100.942	201.368
1983	81.432	79.659	161.091	102.703	102.314	205.017
1982	73.244	69.630	142.874	90.716	86.479	177.195
1981	90.546	90.148	180.694	111.138	111.061	222.199
1980	78.989	76.969	155.958	91.677	89.333	181.010
1979	84.275	76.398	160.673	99.356	90.666	190.022
1978	81.410	78.529	159.939	98.043	93.703	191.746
1977	70.917	67.049	137.966	89.061	84.165	173.226
1976	60.733	51.469	112.202	78.763	68.747	147.510
1975	59.482	57.057	116.539	77.101	73.438	150.539
1974	64.515	55.992	120.507	84.100	72.500	156.600
1973	56.059	41.019	97.078	72.800	53.400	126.200
1972	57.687	42.212	99.899	74.300	55.600	129.900
1971	43.417	31.243	74.660	55.983	42.371	98.354
1970	38.548	32.124	70.672	50.135	42.786	92.921
1969	38.783	26.852	65.635	44.900	41.300	86.200
1968	11.378	10.118	21.496	14.974	13.788	28.762