Figure 4 Slope Components for the Zurich Airport Model with External Shocks Chronology: 1953–2002,,,, Year,Slope for movements,Slope for passengers,, 1953-1,0.056549316,0.185044043,, 1954-1,0.056676078,0.186476906,, 1955-1,0.052260472,0.176865889,, 1956-1,0.047041261,0.162497385,, 1957-1,0.042471264,0.150031747,, 1958-1,0.038550482,0.139468975,, 1959-1,0.036103817,0.142887084,, 1960-1,0.032856829,0.135044594,, 1961-1,0.027027428,0.126897214,, 1962-1,0.023193371,0.111942214,, 1963-1,0.020484166,0.107000772,, 1964-1,0.020074152,0.116230007,, 1965-1,0.018651161,0.122425030,, 1966-1,0.016510358,0.129653052,, 1967-1,0.015138715,0.130980412 1968-1,0.016508946,0.128265821 1969-1,0.014884352,0.114047008 1970-1,0.014237685,0.109019876 1971-1,0.013385322,0.098772751 1972-1,0.013891989,0.081960964 1973-1,0.012284675,0.053940206 1974-1,0.014190705,0.044960287 1975-1,0.017589133,0.050328239 1976-1,0.020239151,0.047950557 1977-1,0.020132570,0.031972953 1978-1,0.020428566,0.023500268 1979-1,0.022242171,0.022449369 1980-1,0.024238196,0.030197460 1981-1,0.025659993,0.032282987 1982-1,0.028517014,0.038804264 1983-1,0.030638472,0.044203390 1984-1,0.031576066,0.044278127 1985-1,0.032902989,0.042756798 1986-1,0.035489990,0.053378554 1987-1,0.037551672,0.052226014 1988-1,0.037510920,0.050191831 1989-1,0.036039885,0.039255749 1990-1,0.034769147,0.031059470 1991-1,0.037545911,0.045839971 1992-1,0.038009706,0.054860270 1993-1,0.038300326,0.061311026 1994-1,0.036485472,0.062835512 1995-1,0.035300919,0.064115537 1996-1,0.033710502,0.069427686 1997-1,0.029659506,0.062226542 1998-1,0.026195768,0.055240729 1999-1,0.020956828,0.038952820 2000-1,0.012845330,0.011821491 2001-1,0.009682608,0.003278343 2002-1,0.006519885,-0.005264805 2003-1,0.006519885,-0.005264805