Annual Data | Millions of US $ except per share data
| 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2015 | 2014 | 2013 | 2012 | 2011 |
| $46.59 | $52.43 | $46.05 | $33.17 | $20.84 | $23.39 | $12.04 | $2.62 | $2.04 | $8.59 | $1.90 | $8.37 | $1.83 |
| $3.44 | $3.27 | $3.23 | $3.26 | $3.25 | $3.27 | $2.21 | $1.39 | $1.45 | $2.92 | $1.89 | $1.60 | $1.92 |
| $2.09 | $2.77 | $1.53 | $1.62 | $1.43 | $1.56 | $0.65 | $0 | $2.82 | $-4.13 | $1.64 | $-4.15 | $0.07 |
| $5.52 | $6.04 | $4.76 | $4.88 | $4.69 | $4.82 | $2.86 | $1.39 | $4.26 | $-1.21 | $3.53 | $-2.56 | $1.99 |
| $19.65 | $-23.04 | $11.37 | $-10.58 | $-4.74 | $4.54 | $-14.27 | $-2.52 | $-0.62 | $-1.02 | $3.66 | $1.26 | $-7.20 |
| $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0.14 | $0.00 | $-0.07 | $0.08 | $0.03 | $0.15 |
| $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| $-45.90 | $-3.49 | $0.75 | $2.25 | $2.05 | $1.22 | $-0.18 | $-0.16 | $-0.34 | $0.19 | $-0.57 | $0.39 | $0.98 |
| $-33.46 | $-7.52 | $-7.42 | $6.85 | $-8.11 | $12.78 | $-1.36 | $-2.55 | $0.68 | $2.02 | $-0.79 | $-3.06 | $-4.78 |
| $18.65 | $50.96 | $43.39 | $44.90 | $17.42 | $41.00 | $13.54 | $2.15 | $6.98 | $9.41 | $4.65 | $2.75 | $-0.96 |
| $-0.68 | $-0.58 | $-0.71 | $-0.65 | $-0.52 | $-0.50 | $-20.30 | $-4.84 | $-0.37 | $-1.06 | $-1.03 | $-0.64 | $-0.52 |
| $-4.88 | $0 | $-0.01 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $-1.55 | $0 |
| $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $-0.60 | $0 | $2.12 |
| $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0.50 | $0 | $0 | $0 | $0 |
| $-5.56 | $-0.58 | $-0.72 | $-0.65 | $-0.52 | $-0.50 | $-20.30 | $-4.84 | $0.13 | $-1.06 | $-1.63 | $-2.19 | $1.60 |
| $-8.23 | $-6.97 | $-7.60 | $-7.60 | $24.60 | $-6.40 | $7.80 | $2.93 | $-0.10 | $-0.28 | $-0.29 | $-0.25 | $-0.15 |
| $1.80 | $0 | $0 | $-1.16 | $1.16 | $-0.96 | $-1.23 | $0 | $17.93 | $0 | $-3.14 | $-0.80 | $0.61 |
| $-6.44 | $-6.97 | $-7.60 | $-8.76 | $25.76 | $-7.36 | $6.57 | $2.93 | $17.83 | $-0.28 | $-3.43 | $-1.05 | $0.47 |
| $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $-31.03 | $0.35 | $0.00 | $0.04 | $0.00 |
| $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $-31.03 | $0.35 | $0.00 | $0.04 | $0.00 |
| $-16.80 | $-33.59 | $-50.37 | $-16.79 | $-67.09 | $-8.00 | $-0.03 | $-0.06 | $-0.10 | $-0.11 | $-0.11 | $-0.14 | $-0.15 |
| $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| $-23.24 | $-40.56 | $-57.97 | $-25.55 | $-41.33 | $-15.36 | $6.53 | $2.88 | $-13.30 | $-0.04 | $-3.53 | $-1.15 | $0.33 |
| $-10.00 | $9.72 | $-15.45 | $18.56 | $-24.08 | $25.01 | $-0.22 | $0.08 | $-6.80 | $8.34 | $-0.47 | $-0.95 | $1.43 |
| $0.58 | $0.49 | $0.78 | $0 | $0.01 | $0.01 | $0.01 | $0 | $0.57 | $0.30 | $0.26 | $0.19 | $0.04 |
| $-16.80 | $-33.59 | $-50.37 | $-16.79 | $-67.08 | $-7.97 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |