The given table shows the production (in tonnes) of 4 minerals (Aluminium, Copper, Lead, Nickle) during 1990 to 1994. Study the table and answer the question:
| Year | Aluminium | Copper | Lead | Nickel |
| 1990 | 262 | 209 | 235 | 226 |
| 1991 | 294 | 212 | 238 | 232 |
| 1992 | 298 | 215 | 242 | 238 |
| 1993 | 296 | 226 | 266 | 244 |
| 1994 | 312 | 228 | 265 | 242 |
In the production of which of the following minerals was there a successive increase over the given years?
1
Nickel
2
Lead
3
Copper
4
Aluminium