$data <<EOF
09/2022 82.50   82.50   82.48   82.48   0.02%
10/2022 82.48   103.95  81.78   103.95  26.03%
11/2022 103.95  111.70  99.42   109.30  5.15%
12/2022 109.30  109.30  91.86   95.05   -13.04%
01/2023 95.05   108.70  94.65   108.70  14.36%
02/2023 108.70  117.20  108.70  114.00  4.88%
03/2023 114.00  117.90  109.30  117.90  3.42%
04/2023 117.90  118.95  113.15  113.40  -3.82%
05/2023 113.40  119.95  110.55  116.65  2.87%
06/2023 116.65  118.15  108.50  113.70  -2.53%
07/2023 113.70  114.90  109.00  111.95  -1.54%
08/2023 111.95  113.15  99.72   101.70  -9.16%
09/2023 101.70  101.70  88.10   89.12   -12.37%
10/2023 89.12   91.56   82.04   83.24   -6.60%
11/2023 83.24   91.56   82.92   84.14   1.08%
12/2023 84.14   84.66   80.02   80.02   -4.90%
01/2024 80.02   80.46   72.52   79.22   -1.00%
02/2024 79.22   86.96   78.78   86.96   9.77%
03/2024 86.96   94.08   81.70   92.30   6.14%
04/2024 92.30   95.26   83.82   83.82   -9.19%
05/2024 83.82   85.76   73.76   76.08   -9.23%
06/2024 76.08   77.30   68.62   69.84   -8.20%
07/2024 69.84   75.68   68.30   69.62   0.32%
08/2024 69.62   71.08   65.72   71.08   2.10%
09/2024 71.08   72.88   64.90   71.60   0.73%
10/2024 71.60   71.60   64.92   64.92   -9.33%
11/2024 64.92   66.52   57.14   59.22   -8.78%
12/2024 59.22   61.34   57.78   58.16   -1.79%
01/2025 58.16   62.90   57.12   61.78   6.22%
02/2025 61.78   61.78   55.30   56.46   -8.61%
03/2025 56.46   57.76   46.27   46.27   -18.05%
04/2025 46.27   46.66   41.20   44.18   -4.52%
05/2025 44.18   48.45   42.33   42.79   -3.15%
06/2025 42.79   42.79   39.92   42.17   -1.45%
EOF

set term pdf size 22,13
set term pdf font "sans,20"
set output "Porsche_vz.pdf"
set grid
set key top left
set xdata time
set timefmt "%m/%Y"
set format x "%b %Y"
set xtics rotate by -90 
set xtics 365.25*24*60*60/1     # 1 tics per year

wd = 15.25*24*60*60     # 15.25 days box width
set style fill transparent solid 0.8
plot $data using 1:(($3+$4)/2):(wd):(($4-$3)/2) with boxxyerror lw 1 lc 3 title "Porsche AG Vz. [DE000PAG9113] "