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R-source code: raw<-read.csv(file="mgold.csv",skip=4,colClasses=c("character",NULL,"numeric"))

data<-raw[,3]
date<-as.Date(paste(raw[,1],".28",sep=""),format="%Y.%m.%d")
png(filename="Gold-Price.png", width=1024, height=768, pointsize=12)
plot(date,data,type="l",col="gold",ylab="Kurs in Dollar",lwd=2,main="Gold  - monatliche Schlusskurse in USD")
dev.off()

final data file: Gold Price in US Dollars,, US$/oz,, "Month end, (Date format=""yyyy.mm"")",, "Source: COMEX, London Bullion Market Association",,

DATE,, MGOLD

1968.01,,35.2 1968.02,,35.2 1968.03,,39.4 1968.04,,39.1 1968.05,,41.3 1968.06,,41 1968.07,,38.75 1968.08,,39.9 1968.09,,38.55 1968.10,,39.5 1968.11,,40.62 1968.12,,41.72 1969.01,,42.52 1969.02,,42.7 1969.03,,43.4 1969.04,,43.6 1969.05,,43.37 1969.06,,40.9 1969.07,,41.47 1969.08,,40.92 1969.09,,40.85 1969.10,,40 1969.11,,35.6 1969.12,,35.17 1970.01,,34.83 1970.02,,34.96 1970.03,,35.1 1970.04,,35.95 1970.05,,35.96 1970.06,,35.4 1970.07,,35.3 1970.08,,35.25 1970.09,,36.23 1970.10,,38 1970.11,,37.55 1970.12,,37.4 1971.01,,38.05 1971.02,,38.75 1971.03,,38.82 1971.04,,39.2 1971.05,,40.92 1971.06,,40.15 1971.07,,42.9 1971.08,,42.85 1971.09,,42.65 1971.10,,42.5 1971.11,,43.4 1971.12,,43.55 1972.01,,46.2 1972.02,,48.64 1972.03,,48.4 1972.04,,49.3 1972.05,,59.4 1972.06,,64 1972.07,,66.5 1972.08,,66.85 1972.09,,68.75 1972.10,,64.75 1972.11,,63.55 1972.12,,65 1973.01,,68.8 1973.02,,82 1973.03,,90.75 1973.04,,90.7 1973.05,,126 1973.06,,122 1973.07,,115.6 1973.08,,105.1 1973.09,,97.75 1973.10,,98 1973.11,,105.5 1973.12,,111.75 1974.01,,137.5 1974.02,,175 1974.03,,172.25 1974.04,,174.7 1974.05,,154 1974.06,,149.75 1974.07,,159 1974.08,,152.5 1974.09,,147.5 1974.10,,168.25 1974.11,,186 1974.12,,193 1975.01,,176.5 1975.02,,185 1975.03,,176.75 1975.04,,167.05 1975.05,,172 1975.06,,162.4 1975.07,,168.4 1975.08,,161.85 1975.09,,128.75 1975.10,,142.7 1975.11,,141.4 1975.12,,140.75 1976.01,,126.25 1976.02,,132.45 1976.03,,128.7 1976.04,,128.7 1976.05,,124.5 1976.06,,123.7 1976.07,,114.15 1976.08,,104.38 1976.09,,116.25 1976.10,,124 1976.11,,130.5 1976.12,,134.63 1977.01,,132.38 1977.02,,143.13 1977.03,,148.88 1977.04,,147.38 1977.05,,143.2 1977.06,,143.13 1977.07,,144.38 1977.08,,146.13 1977.09,,154.38 1977.10,,161.63 1977.11,,160.13 1977.12,,165.13 1978.01,,175.88 1978.02,,182.63 1978.03,,183.63 1978.04,,170.63 1978.05,,184.38 1978.06,,183.38 1978.07,,200.63 1978.08,,208.13 1978.09,,217.38 1978.10,,241.13 1978.11,,193.38 1978.12,,226.38 1979.01,,233.88 1979.02,,251.63 1979.03,,238.63 1979.04,,246.38 1979.05,,275.63 1979.06,,279.88 1979.07,,298.88 1979.08,,316.38 1979.09,,398 1979.10,,382.5 1979.11,,415.75 1979.12,,526.5 1980.01,,653 1980.02,,637 1980.03,,494.5 1980.04,,518 1980.05,,535.5 1980.06,,653.5 1980.07,,614.25 1980.08,,631.25 1980.09,,666.75 1980.10,,629 1980.11,,619.75 1980.12,,589.5 1981.01,,506.5 1981.02,,489 1981.03,,513.75 1981.04,,482.75 1981.05,,479.25 1981.06,,426 1981.07,,406 1981.08,,425 1981.09,,428.75 1981.10,,427 1981.11,,414.5 1981.12,,400 1982.01,,387 1982.02,,362.6 1982.03,,320 1982.04,,361.25 1982.05,,325.25 1982.06,,317.5 1982.07,,342.9 1982.08,,411.5 1982.09,,397 1982.10,,423.25 1982.11,,436 1982.12,,448 1983.01,,499.5 1983.02,,408.5 1983.03,,414.75 1983.04,,429.25 1983.05,,437.5 1983.06,,416 1983.07,,422 1983.08,,414.25 1983.09,,405 1983.10,,382 1983.11,,405 1983.12,,381.5 1984.01,,373.75 1984.02,,394.25 1984.03,,388.5 1984.04,,375.8 1984.05,,384.25 1984.06,,373.05 1984.07,,342.35 1984.08,,348.25 1984.09,,343.75 1984.10,,333.5 1984.11,,329 1984.12,,308.3 1985.01,,306.65 1985.02,,287.75 1985.03,,329.25 1985.04,,321.35 1985.05,,314 1985.06,,317.75 1985.07,,327.5 1985.08,,333.25 1985.09,,325.75 1985.10,,325.1 1985.11,,325.3 1985.12,,326.8 1986.01,,350.5 1986.02,,338.15 1986.03,,344 1986.04,,345.75 1986.05,,343.2 1986.06,,346.75 1986.07,,357.5 1986.08,,384.7 1986.09,,423.2 1986.10,,401 1986.11,,389.5 1986.12,,388.75 1987.01,,400.5 1987.02,,405.85 1987.03,,421 1987.04,,453.25 1987.05,,451 1987.06,,447.3 1987.07,,462.5 1987.08,,453.4 1987.09,,459.5 1987.10,,468.8 1987.11,,492.5 1987.12,,484.1 1988.01,,458 1988.02,,426.15 1988.03,,456.95 1988.04,,449 1988.05,,455.5 1988.06,,436.55 1988.07,,436.8 1988.08,,427.75 1988.09,,396.7 1988.10,,412.4 1988.11,,422.6 1988.12,,410.25 1989.01,,394 1989.02,,387 1989.03,,383.2 1989.04,,377.55 1989.05,,361.8 1989.06,,373 1989.07,,368.3 1989.08,,359.8 1989.09,,366.5 1989.10,,375.3 1989.11,,408.15 1989.12,,401 1990.01,,415.05 1990.02,,407.7 1990.03,,368.5 1990.04,,367.75 1990.05,,363.05 1990.06,,352.2 1990.07,,372.3 1990.08,,387.75 1990.09,,408.4 1990.10,,379.5 1990.11,,384.85 1990.12,,386.2 1991.01,,366 1991.02,,362.7 1991.03,,355.65 1991.04,,357.75 1991.05,,360.4 1991.06,,368.35 1991.07,,362.85 1991.08,,347.4 1991.09,,354.9 1991.10,,357.45 1991.11,,366.3 1991.12,,353.4 1992.01,,354.1 1992.02,,353.1 1992.03,,341.7 1992.04,,336.35 1992.05,,337.5 1992.06,,343.4 1992.07,,357.85 1992.08,,340 1992.09,,349 1992.10,,339.25 1992.11,,334.2 1992.12,,332.3 1993.01,,330.45 1993.02,,327.6 1993.03,,337.8 1993.04,,354.3 1993.05,,377.45 1993.06,,378.45 1993.07,,401.75 1993.08,,371.55 1993.09,,355.5 1993.10,,369.6 1993.11,,370.9 1993.12,,390.5 1994.01,,377.9 1994.02,,381.55 1994.03,,389.2 1994.04,,376.45 1994.05,,387.6 1994.06,,388.25 1994.07,,384 1994.08,,385.75 1994.09,,394.85 1994.10,,383.85 1994.11,,383.1 1994.12,,382.5 1995.01,,374.9 1995.02,,376.4 1995.03,,392 1995.04,,389.75 1995.05,,384.3 1995.06,,387.05 1995.07,,383.35 1995.08,,382.35 1995.09,,384 1995.10,,382.65 1995.11,,387.8 1995.12,,387.15 1996.01,,405.55 1996.02,,400.65 1996.03,,396.35 1996.04,,391.3 1996.05,,390.55 1996.06,,382 1996.07,,385.3 1996.08,,386.55 1996.09,,379 1996.10,,379.5 1996.11,,371.3 1996.12,,369.25 1997.01,,345.5 1997.02,,358.6 1997.03,,348.15 1997.04,,340.15 1997.05,,345.6 1997.06,,334.55 1997.07,,326.35 1997.08,,325.35 1997.09,,332.1 1997.10,,311.4 1997.11,,296.8 1997.12,,289.2 1998.01,,304.85 1998.02,,297.4 1998.03,,301 1998.04,,310.7 1998.05,,293.6 1998.06,,296.3 1998.07,,288.85 1998.08,,273.4 1998.09,,293.85 1998.10,,293.1 1998.11,,294.7 1998.12,,287.45 1999.01,,285.4 1999.02,,287.05 1999.03,,279.45 1999.04,,286.6 1999.05,,268.6 1999.06,,261 1999.07,,255.6 1999.08,,254.8 1999.09,,299 1999.10,,299.1 1999.11,,291.35 1999.12,,290.25 2000.01,,283.3 2000.02,,293.65 2000.03,,276.75 2000.04,,275.05 2000.05,,272.25 2000.06,,288.15 2000.07,,276.75 2000.08,,277 2000.09,,273.65 2000.10,,264.5 2000.11,,269.1 2000.12,,272.65 2001.01,,264.5 2001.02,,266.7 2001.03,,257.7 2001.04,,263.15 2001.05,,267.5 2001.06,,270.6 2001.07,,265.9 2001.08,,273 2001.09,,293.1 2001.10,,278.75 2001.11,,275.5 2001.12,,276.5 2002.01,,282.3 2002.02,,296.85 2002.03,,301.4 2002.04,,308.2 2002.05,,326.6 2002.06,,318.5 2002.07,,304.65 2002.08,,312.8 2002.09,,322.5 2002.10,,316.9 2002.11,,319.05 2002.12,,342.75 2003.01,,367.5 2003.02,,347.45 2003.03,,334.85 2003.04,,336.75 2003.05,,361.4 2003.06,,346 2003.07,,354.75 2003.08,,375.6 2003.09,,388 2003.10,,386.25 2003.11,,398.35 2003.12,,417.25 2004.01,,399.75 2004.02,,395.85 2004.03,,423.7 2004.04,,388.5 2004.05,,393.25 2004.06,,395.8 2004.07,,391.4 2004.08,,407.25 2004.09,,415.65 2004.10,,425.55 2004.11,,453.4 2004.12,,435.6 2005.01,,422.15 2005.02,,435.45 2005.03,,427.5 2005.04,,435.7 2005.05,,414.45 2005.06,,437.1 2005.07,,429 2005.08,,433.25 2005.09,,473.25 2005.10,,470.75 2005.11,,495.65 2005.12,,513 2006.01,,568.75 2006.02,,556

2006.03,,583,40 2006.04,,653,43 2006.05,,644,85 2006.06,,614,05 2006.07,,636,80 2006.08,,626,95 2006.09,,598,09 2006.10,,606,40 2006.11,,647,15 2006.12,,626,80  Dieses Chart wurde mit R erstellt.